Finding the Fourth Proportional to 2,518,153.56, 3,777,965.88 and 812,259.12

Step by Step Solution

1. Step 1: Write the proportion equation
   2,518,153.56 : 3,777,965.88 = 812,259.12 : x
2. Step 2: Convert to fraction form
   2,518,153.56/3,777,965.88 = 812,259.12/x
3. Step 3: Cross multiply
   2,518,153.56x = 3,777,965.88 × 812,259.12
4. Step 4: Simplify right side
   2,518,153.56x = 3,068,687,241,078.83
5. Step 5: Solve for x
   x = 3,068,687,241,078.83/2,518,153.56
6. Step 6: Final answer
   x = 1,218,625.94