Explanation:
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![\underline{ \underline{ \text{Given}}} :](https://img.qammunity.org/2022/formulas/mathematics/high-school/930b427lft1tjkl14cso23pyunmp15j7xd.png)
- Principal ( P ) = £ 806
- Rate ( R ) = 17.8 %
- Time ( T ) = 4 years
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![\underline{ \underline{ \text{To \: find}}} :](https://img.qammunity.org/2022/formulas/physics/college/he559o5ojtp50rl1wt7o65sfxqi2tvns5y.png)
- Total amount of money in the account
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![\underline{ \underline{ \text{Solution}}} :](https://img.qammunity.org/2022/formulas/mathematics/high-school/bezopcad47hrdqgoennkly63bs3drtumv5.png)
First , Finding the interest :
![\boxed{ \sf{Interest = (PTR)/(100)}}](https://img.qammunity.org/2022/formulas/mathematics/high-school/10fpptgh7bs4em55gxi3gpcifac5lcgeaz.png)
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![\sf{ (806 * 4 * 17.8)/(100)}](https://img.qammunity.org/2022/formulas/mathematics/high-school/eswwkrvlmoanb7akkhcckl8le3brm9ip8i.png)
⇢
![\sf{ (57382.2)/(100)}](https://img.qammunity.org/2022/formulas/mathematics/high-school/eap0emcdd2omca2z44g3xf48dztjulkbor.png)
⇢
![\sf{£ 573.872}](https://img.qammunity.org/2022/formulas/mathematics/high-school/2m3gej1zwwudjdrh5u1ehvo2rp5gim1hw8.png)
Now , Finding the total amount :
![\boxed{ \sf{Amount = Principal + Interest}}](https://img.qammunity.org/2022/formulas/mathematics/high-school/syiigdr16k8ecjtz6i3kya105yv1orvaft.png)
⇢
![\sf{806 + 573.872}](https://img.qammunity.org/2022/formulas/mathematics/high-school/iden1fwzuzx06honjgfrx6v3y9yv45gkfw.png)
⇢
![\sf{ £ 1379.872}](https://img.qammunity.org/2022/formulas/mathematics/high-school/3v9112x0is6asines2vpn5ub6a1t6jaj9o.png)
![\pink{ \boxed{ \boxed {\tt{Our \: final \: answer : \boxed{ \tt{ £ 1379.872}}}}}}](https://img.qammunity.org/2022/formulas/mathematics/high-school/x7mgjk7c9cekeycazt1t6elghlmxfi79ip.png)
Hope I helped ! ♡
Have a wonderful day / night ! ツ
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