Finding the Fourth Proportional to 790,672.71, 1,091,123.71 and 428,088.96

Step by Step Solution

1. Step 1: Write the proportion equation
   790,672.71 : 1,091,123.71 = 428,088.96 : x
2. Step 2: Convert to fraction form
   790,672.71/1,091,123.71 = 428,088.96/x
3. Step 3: Cross multiply
   790,672.71x = 1,091,123.71 × 428,088.96
4. Step 4: Simplify right side
   790,672.71x = 467,098,014,245.24
5. Step 5: Solve for x
   x = 467,098,014,245.24/790,672.71
6. Step 6: Final answer
   x = 590,760.26