Three Perpetuities

You are going to receive three perpetuities. Perpetuity 1 will pay $350 each year, with the first payment to be paid at Year 1. Perpetuity 2 will pay $550 each year, with the first payment to be paid at Year 15. Perpetuity 3 will pay $650 each year, with the first payment to be paid at Year 31. The effective annual interest rate is 8.58 percent. Find the combined value of these three perpetuities, evaluated at Year 25