Finding the Fourth Proportional to 2,200,868.70, 3,302,287.20 and 781,943.10

Step by Step Solution

1. Step 1: Write the proportion equation
   2,200,868.70 : 3,302,287.20 = 781,943.10 : x
2. Step 2: Convert to fraction form
   2,200,868.70/3,302,287.20 = 781,943.10/x
3. Step 3: Cross multiply
   2,200,868.70x = 3,302,287.20 × 781,943.10
4. Step 4: Simplify right side
   2,200,868.70x = 2,582,200,690,258.32
5. Step 5: Solve for x
   x = 2,582,200,690,258.32/2,200,868.70
6. Step 6: Final answer
   x = 1,173,264.31