Finding the Fourth Proportional to 2,172,647.10, 3,258,954.45 and 656,327.10

Step by Step Solution

1. Step 1: Write the proportion equation
   2,172,647.10 : 3,258,954.45 = 656,327.10 : x
2. Step 2: Convert to fraction form
   2,172,647.10/3,258,954.45 = 656,327.10/x
3. Step 3: Cross multiply
   2,172,647.10x = 3,258,954.45 × 656,327.10
4. Step 4: Simplify right side
   2,172,647.10x = 2,138,940,123,200.60
5. Step 5: Solve for x
   x = 2,138,940,123,200.60/2,172,647.10
6. Step 6: Final answer
   x = 984,485.76