Finding the Fourth Proportional to 2,617,287.86, 3,925,925.82 and 820,308.26

Step by Step Solution

1. Step 1: Write the proportion equation
   2,617,287.86 : 3,925,925.82 = 820,308.26 : x
2. Step 2: Convert to fraction form
   2,617,287.86/3,925,925.82 = 820,308.26/x
3. Step 3: Cross multiply
   2,617,287.86x = 3,925,925.82 × 820,308.26
4. Step 4: Simplify right side
   2,617,287.86x = 3,220,469,378,293.27
5. Step 5: Solve for x
   x = 3,220,469,378,293.27/2,617,287.86
6. Step 6: Final answer
   x = 1,230,460.52