Finding the Fourth Proportional to 2,551,898.16, 3,521,617.50 and 1,405,978.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,551,898.16 : 3,521,617.50 = 1,405,978.50 : x
2. Step 2: Convert to fraction form
   2,551,898.16/3,521,617.50 = 1,405,978.50/x
3. Step 3: Cross multiply
   2,551,898.16x = 3,521,617.50 × 1,405,978.50
4. Step 4: Simplify right side
   2,551,898.16x = 4,951,318,490,223.75
5. Step 5: Solve for x
   x = 4,951,318,490,223.75/2,551,898.16
6. Step 6: Final answer
   x = 1,940,249.25