Finding the Fourth Proportional to 3,988,265.09, 5,981,142.83 and 1,291,964.72

Step by Step Solution

1. Step 1: Write the proportion equation
   3,988,265.09 : 5,981,142.83 = 1,291,964.72 : x
2. Step 2: Convert to fraction form
   3,988,265.09/5,981,142.83 = 1,291,964.72/x
3. Step 3: Cross multiply
   3,988,265.09x = 5,981,142.83 × 1,291,964.72
4. Step 4: Simplify right side
   3,988,265.09x = 7,727,425,485,275.42
5. Step 5: Solve for x
   x = 7,727,425,485,275.42/3,988,265.09
6. Step 6: Final answer
   x = 1,937,540.59