A person you trust foresees the need for a loan and suggests that you loan them $2,000 at the end of year 1, $1,000 at the end of year 2, nothing in year 3, and then they will pay you $1,000 in year 4, $2,000 in year 5, and $3,000 in year 6. They note that you will pay out a total of $6,000 to them, allowing you to "double your money." If you are able to make 12% per year on your investments, determine the present worth of this series of cash flows.