Finding the Fourth Proportional to 800,760.89, 1,105,049.98 and 438,184.79

Step by Step Solution

1. Step 1: Write the proportion equation
   800,760.89 : 1,105,049.98 = 438,184.79 : x
2. Step 2: Convert to fraction form
   800,760.89/1,105,049.98 = 438,184.79/x
3. Step 3: Cross multiply
   800,760.89x = 1,105,049.98 × 438,184.79
4. Step 4: Simplify right side
   800,760.89x = 484,216,093,425.80
5. Step 5: Solve for x
   x = 484,216,093,425.80/800,760.89
6. Step 6: Final answer
   x = 604,694.98