Finding the Fourth Proportional to 825,100.88, 1,138,643.31 and 481,175.30

Step by Step Solution

1. Step 1: Write the proportion equation
   825,100.88 : 1,138,643.31 = 481,175.30 : x
2. Step 2: Convert to fraction form
   825,100.88/1,138,643.31 = 481,175.30/x
3. Step 3: Cross multiply
   825,100.88x = 1,138,643.31 × 481,175.30
4. Step 4: Simplify right side
   825,100.88x = 547,887,040,933.26
5. Step 5: Solve for x
   x = 547,887,040,933.26/825,100.88
6. Step 6: Final answer
   x = 664,024.31