Answer: $315.47
Step-by-step explanation:
As this requires equal annual payments, it makes it an annuity. The $1,000 debt will be the present value of the annuity so a present value of annuity formula can be used:
1,000 = Annuity * ( 1 - ( 1 + rate) ^ -n) / rate
1,000 = Annuity * ( 1 - ( 1 + 10%)⁻⁴ ) / 10%
1,000 = Annuity * 3.169865
Annuity = 1,000/3.169865
Annuity = $315.47