Finding the Fourth Proportional to 881,499.30, 1,216,542.81 and 494,308.56

Step by Step Solution

1. Step 1: Write the proportion equation
   881,499.30 : 1,216,542.81 = 494,308.56 : x
2. Step 2: Convert to fraction form
   881,499.30/1,216,542.81 = 494,308.56/x
3. Step 3: Cross multiply
   881,499.30x = 1,216,542.81 × 494,308.56
4. Step 4: Simplify right side
   881,499.30x = 601,347,524,589.45
5. Step 5: Solve for x
   x = 601,347,524,589.45/881,499.30
6. Step 6: Final answer
   x = 682,187.18