Finding the Fourth Proportional to 2,663,590.64, 3,995,422.81 and 866,483.53

Step by Step Solution

1. Step 1: Write the proportion equation
   2,663,590.64 : 3,995,422.81 = 866,483.53 : x
2. Step 2: Convert to fraction form
   2,663,590.64/3,995,422.81 = 866,483.53/x
3. Step 3: Cross multiply
   2,663,590.64x = 3,995,422.81 × 866,483.53
4. Step 4: Simplify right side
   2,663,590.64x = 3,461,968,048,096.55
5. Step 5: Solve for x
   x = 3,461,968,048,096.55/2,663,590.64
6. Step 6: Final answer
   x = 1,299,737.28