Finding the Fourth Proportional to 2,551,025.40, 3,520,414.48 and 1,405,105.76

Step by Step Solution

1. Step 1: Write the proportion equation
   2,551,025.40 : 3,520,414.48 = 1,405,105.76 : x
2. Step 2: Convert to fraction form
   2,551,025.40/3,520,414.48 = 1,405,105.76/x
3. Step 3: Cross multiply
   2,551,025.40x = 3,520,414.48 × 1,405,105.76
4. Step 4: Simplify right side
   2,551,025.40x = 4,946,554,663,435.41
5. Step 5: Solve for x
   x = 4,946,554,663,435.41/2,551,025.40
6. Step 6: Final answer
   x = 1,939,045.63