What is the present value of the following set of cash flows if the discount rate is $15\mathrm{.}7\%?($the cash flows occur at the end of each period$)($round answer to nearest penny and enter in the following format $12345\mathrm{.}67)$

Year $0$ cash flow $=-3100($a negative cash flow$)$

Year $1$ cash flow $=1800$

Year $2$ cash flow $=1900$

Year $3$ cash flow $=1000$

Year $4$ cash flow $=1000$