Peter just took out a loan from the bank for $16,600.00 . He plans to repay this loan by making a special payment to the bank of $5,100.00 in 2 quarters and by also making equal, regular quarterly payments of X. If the interest rate on the loan is 3.95 percent per quarter, he makes his first regular quarterly payment later today, and he makes his last regular quarterly payment in 4 quarters, then what is X, the amount of the regular quarterly payment?