Finding the Fourth Proportional to 825,665.00, 1,139,417.35 and 481,434.50

Step by Step Solution

1. Step 1: Write the proportion equation
   825,665.00 : 1,139,417.35 = 481,434.50 : x
2. Step 2: Convert to fraction form
   825,665.00/1,139,417.35 = 481,434.50/x
3. Step 3: Cross multiply
   825,665.00x = 1,139,417.35 × 481,434.50
4. Step 4: Simplify right side
   825,665.00x = 548,554,823,833.53
5. Step 5: Solve for x
   x = 548,554,823,833.53/825,665.00
6. Step 6: Final answer
   x = 664,379.41