Finding the Fourth Proportional to 800,810.54, 1,105,118.56 and 438,234.41

Step by Step Solution

1. Step 1: Write the proportion equation
   800,810.54 : 1,105,118.56 = 438,234.41 : x
2. Step 2: Convert to fraction form
   800,810.54/1,105,118.56 = 438,234.41/x
3. Step 3: Cross multiply
   800,810.54x = 1,105,118.56 × 438,234.41
4. Step 4: Simplify right side
   800,810.54x = 484,300,973,500.47
5. Step 5: Solve for x
   x = 484,300,973,500.47/800,810.54
6. Step 6: Final answer
   x = 604,763.49