4. The accumulated value of a certain fund at time t = 8 years is $1171. The fund was established with an initial investment of $100. Deposits were made at t = 1 and at t = 4. The second deposit was in the amount of $500. No other deposits or withdrawals were made to the fund. If the annual interest rate for the entire 8 years was 3.42%, calculate the amount of the first deposit that was made at time t = 1