Finding the Fourth Proportional to 838,289.69, 1,156,990.74 and 494,105.52

Step by Step Solution

1. Step 1: Write the proportion equation
   838,289.69 : 1,156,990.74 = 494,105.52 : x
2. Step 2: Convert to fraction form
   838,289.69/1,156,990.74 = 494,105.52/x
3. Step 3: Cross multiply
   838,289.69x = 1,156,990.74 × 494,105.52
4. Step 4: Simplify right side
   838,289.69x = 571,675,511,222.89
5. Step 5: Solve for x
   x = 571,675,511,222.89/838,289.69
6. Step 6: Final answer
   x = 681,954.60