Finding the Fourth Proportional to 766,086.54, 1,146,330.42 and 450,691.98

Step by Step Solution

1. Step 1: Write the proportion equation
   766,086.54 : 1,146,330.42 = 450,691.98 : x
2. Step 2: Convert to fraction form
   766,086.54/1,146,330.42 = 450,691.98/x
3. Step 3: Cross multiply
   766,086.54x = 1,146,330.42 × 450,691.98
4. Step 4: Simplify right side
   766,086.54x = 516,641,926,724.03
5. Step 5: Solve for x
   x = 516,641,926,724.03/766,086.54
6. Step 6: Final answer
   x = 674,391.08