Finding the Fourth Proportional to 2,637,610.80, 3,956,373.27 and 840,470.04

Step by Step Solution

1. Step 1: Write the proportion equation
   2,637,610.80 : 3,956,373.27 = 840,470.04 : x
2. Step 2: Convert to fraction form
   2,637,610.80/3,956,373.27 = 840,470.04/x
3. Step 3: Cross multiply
   2,637,610.80x = 3,956,373.27 × 840,470.04
4. Step 4: Simplify right side
   2,637,610.80x = 3,325,213,200,491.83
5. Step 5: Solve for x
   x = 3,325,213,200,491.83/2,637,610.80
6. Step 6: Final answer
   x = 1,260,691.38