Finding the Fourth Proportional to 863,665.92, 1,191,860.56 and 481,717.30

Step by Step Solution

1. Step 1: Write the proportion equation
   863,665.92 : 1,191,860.56 = 481,717.30 : x
2. Step 2: Convert to fraction form
   863,665.92/1,191,860.56 = 481,717.30/x
3. Step 3: Cross multiply
   863,665.92x = 1,191,860.56 × 481,717.30
4. Step 4: Simplify right side
   863,665.92x = 574,139,850,939.69
5. Step 5: Solve for x
   x = 574,139,850,939.69/863,665.92
6. Step 6: Final answer
   x = 664,770.76