9514 1404 393
Answer:
 $2560.00
Step-by-step explanation:
The account balance is given by the formula ...
 A = Pe^(rt) . . . . principal P invested at rate r for t years
Filling in your numbers, we have ...
 $3287.11 = Pe^(0.05·5)
 P = $3287.11e^(-0.25) = $2560.00
The initial amount was $2560.00.