Finding the Fourth Proportional to 2,569,178.29, 3,854,627.76 and 840,127.86

Step by Step Solution

1. Step 1: Write the proportion equation
   2,569,178.29 : 3,854,627.76 = 840,127.86 : x
2. Step 2: Convert to fraction form
   2,569,178.29/3,854,627.76 = 840,127.86/x
3. Step 3: Cross multiply
   2,569,178.29x = 3,854,627.76 × 840,127.86
4. Step 4: Simplify right side
   2,569,178.29x = 3,238,380,171,105.39
5. Step 5: Solve for x
   x = 3,238,380,171,105.39/2,569,178.29
6. Step 6: Final answer
   x = 1,260,473.12