Answer-
The digit in the thousand place is '9'.
Solution-
The given number is 5_278.
The difference between the values of the digits in the thousandth place and the tenth place is 8930.
The digits in the tenth place is already given, which is 7
Let's assume the digits in the thousandth place is x,
So the value of the thousand's becomes
![(x * 1000) = 1000x](https://img.qammunity.org/2019/formulas/mathematics/middle-school/3jyd3ftr0c1ndrcx1kmvhi7b73awx86oo6.png)
and the value of the ten's is 7 × 10 = 70
Writing an equation for this,
![1000x - 70 = 8930 \Rightarrow 1000x=9000 \Rightarrow x=9](https://img.qammunity.org/2019/formulas/mathematics/middle-school/oclzfb146b1j72piab60nkzemloww6a5dl.png)