Finding the Fourth Proportional to 757,682.28, 1,045,596.72 and 418,150.56

Step by Step Solution

1. Step 1: Write the proportion equation
   757,682.28 : 1,045,596.72 = 418,150.56 : x
2. Step 2: Convert to fraction form
   757,682.28/1,045,596.72 = 418,150.56/x
3. Step 3: Cross multiply
   757,682.28x = 1,045,596.72 × 418,150.56
4. Step 4: Simplify right side
   757,682.28x = 437,216,854,002.16
5. Step 5: Solve for x
   x = 437,216,854,002.16/757,682.28
6. Step 6: Final answer
   x = 577,045.11