Finding the Fourth Proportional to 2,617,291.86, 3,925,931.82 and 820,312.26

Step by Step Solution

1. Step 1: Write the proportion equation
   2,617,291.86 : 3,925,931.82 = 820,312.26 : x
2. Step 2: Convert to fraction form
   2,617,291.86/3,925,931.82 = 820,312.26/x
3. Step 3: Cross multiply
   2,617,291.86x = 3,925,931.82 × 820,312.26
4. Step 4: Simplify right side
   2,617,291.86x = 3,220,490,003,870.11
5. Step 5: Solve for x
   x = 3,220,490,003,870.11/2,617,291.86
6. Step 6: Final answer
   x = 1,230,466.52