I just need APR - I do not know how to find

Calculate (a) the amount financed, (b) the total finance charge, and (c) APR by formula. (Do not round intermediate calculations. Round the "Finance charge" to the nearest cent and "APR" to the nearest tenth percent.) APR Purchase price of a used car $ 5,653 Down payment $ 1,213 Number of monthly payments 48 Amount financed $ 4,440 Total of monthly payments $ 5,709.76 Total finance charge $ 1,269.76 %