I need help with this question. Is there a formula that I should use?

I need help with this question. Is there a formula that I should use?

Mike has been offered the opportunity to invest in a project that will pay $2,183 per year at the end of years one through three and $12,216 per year at the end of years four and five. If the appropriate discount rate is 18.5 percent per year, what is the present value of this cash flow pattern. Please assist.