Finding the Fourth Proportional to 2,946,702.74, 4,420,086.90 and 816,805.28

Step by Step Solution

1. Step 1: Write the proportion equation
   2,946,702.74 : 4,420,086.90 = 816,805.28 : x
2. Step 2: Convert to fraction form
   2,946,702.74/4,420,086.90 = 816,805.28/x
3. Step 3: Cross multiply
   2,946,702.74x = 4,420,086.90 × 816,805.28
4. Step 4: Simplify right side
   2,946,702.74x = 3,610,350,317,978.83
5. Step 5: Solve for x
   x = 3,610,350,317,978.83/2,946,702.74
6. Step 6: Final answer
   x = 1,225,217.01