Finding the Fourth Proportional to 800,900.34, 1,105,227.72 and 438,316.98

Step by Step Solution

1. Step 1: Write the proportion equation
   800,900.34 : 1,105,227.72 = 438,316.98 : x
2. Step 2: Convert to fraction form
   800,900.34/1,105,227.72 = 438,316.98/x
3. Step 3: Cross multiply
   800,900.34x = 1,105,227.72 × 438,316.98
4. Step 4: Simplify right side
   800,900.34x = 484,440,076,442.69
5. Step 5: Solve for x
   x = 484,440,076,442.69/800,900.34
6. Step 6: Final answer
   x = 604,869.36