Finding the Fourth Proportional to 638,522.52, 881,314.61 and 383,824.50

Step by Step Solution

1. Step 1: Write the proportion equation
   638,522.52 : 881,314.61 = 383,824.50 : x
2. Step 2: Convert to fraction form
   638,522.52/881,314.61 = 383,824.50/x
3. Step 3: Cross multiply
   638,522.52x = 881,314.61 × 383,824.50
4. Step 4: Simplify right side
   638,522.52x = 338,270,137,606.82
5. Step 5: Solve for x
   x = 338,270,137,606.82/638,522.52
6. Step 6: Final answer
   x = 529,770.10