A perpetuity pays $2X one year from today. The annual payments increase by 5% per year thereafter. The effective annual interest rate on this perpetuity is 6%. The present value is $32, 400. A second perpetuity pays $Y one year from now, and the annual payments increase by $X per year thereafter. The effective annual interest rate on this perpetuity is i and the present value is $24, 000. A third perpetuity pays $Y per year, with the first payment one year from now. The effective annual interest rate on this perpetuity is i and the present value is $4, 000. Calculate Y .