Finding the Fourth Proportional to 2,659,669.72, 3,989,585.24 and 862,503.64

Step by Step Solution

1. Step 1: Write the proportion equation
   2,659,669.72 : 3,989,585.24 = 862,503.64 : x
2. Step 2: Convert to fraction form
   2,659,669.72/3,989,585.24 = 862,503.64/x
3. Step 3: Cross multiply
   2,659,669.72x = 3,989,585.24 × 862,503.64
4. Step 4: Simplify right side
   2,659,669.72x = 3,441,031,791,590.27
5. Step 5: Solve for x
   x = 3,441,031,791,590.27/2,659,669.72
6. Step 6: Final answer
   x = 1,293,781.62