Finding the Fourth Proportional to 637,714.49, 880,085.79 and 351,234.50

Step by Step Solution

1. Step 1: Write the proportion equation
   637,714.49 : 880,085.79 = 351,234.50 : x
2. Step 2: Convert to fraction form
   637,714.49/880,085.79 = 351,234.50/x
3. Step 3: Cross multiply
   637,714.49x = 880,085.79 × 351,234.50
4. Step 4: Simplify right side
   637,714.49x = 309,116,488,007.33
5. Step 5: Solve for x
   x = 309,116,488,007.33/637,714.49
6. Step 6: Final answer
   x = 484,725.52