Work backward to find the value of the variable in the equation below d - 4 = 23

How do you do this geometry problem

The amount of money, in dollars, in an account after t years is given by a = 1000(1.03)^t. the initial deposit into the account was $_^a0 and the interest rate was _a1% per year. only enter numbers in the boxes. do not include any commas or decimal points^t. the initial deposit into the account was $__^a0 and the interest rate is % per year.

Find the balance at the end of 4 years if 1000 is deposited at the rate of