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Pretty sure I have the answers correct but I need to double check! Thank you!

Western regional bank is selling a perpetuity that pays equal payments of $X every semiannual period with the first payment in one semiannual period from today. They will accept payment for the perpetuity in 3 incremental payments: 1,874 in 3 years, 5,738 in 6 years and 6,101 in 12 years. How much will the perpetuity pay each semiannual period (what is X )? Assume the interest rate is 12% compounded semiannually. Answer Format: INCLUDE ONLY NUMBERS AND DECIMALS IN YOUR ANSWER. Do not include "\$" "," or any other formatting. Carry interim computations to at least 4 decimals. Enter numerical answers as a positive or negative number rounded to 2 decimal places (\#\#\#.\#\#)