Finding the Fourth Proportional to 1,545,131.76, 2,131,489.20 and 932,946.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,545,131.76 : 2,131,489.20 = 932,946.72 : x
2. Step 2: Convert to fraction form
   1,545,131.76/2,131,489.20 = 932,946.72/x
3. Step 3: Cross multiply
   1,545,131.76x = 2,131,489.20 × 932,946.72
4. Step 4: Simplify right side
   1,545,131.76x = 1,988,565,857,855.42
5. Step 5: Solve for x
   x = 1,988,565,857,855.42/1,545,131.76
6. Step 6: Final answer
   x = 1,286,987.89