A loan of $$$$3949$ borrowed today is to be repaid in three equal installments due in one dash and dash a dash half years$,$ four $$years$,$ and five dash and dash a dash half $$years$,$ respectively. What is the size of the equal installments if money is worth $3\mathrm{.}4\%$ compounded quarterly question mark

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Part $1$

The payments are each $$$

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$($Round the final answer to the nearest cent as needed. Round all intermediate values to six decimal places as$$ needed.$)$