Finding the Fourth Proportional to 2,663,597.22, 3,995,432.64 and 866,490.12

Step by Step Solution

1. Step 1: Write the proportion equation
   2,663,597.22 : 3,995,432.64 = 866,490.12 : x
2. Step 2: Convert to fraction form
   2,663,597.22/3,995,432.64 = 866,490.12/x
3. Step 3: Cross multiply
   2,663,597.22x = 3,995,432.64 × 866,490.12
4. Step 4: Simplify right side
   2,663,597.22x = 3,462,002,907,685.52
5. Step 5: Solve for x
   x = 3,462,002,907,685.52/2,663,597.22
6. Step 6: Final answer
   x = 1,299,747.15