Finding the Fourth Proportional to 2,577.32, 3,863.38 and 1,018.43

Step by Step Solution

1. Step 1: Write the proportion equation
   2,577.32 : 3,863.38 = 1,018.43 : x
2. Step 2: Convert to fraction form
   2,577.32/3,863.38 = 1,018.43/x
3. Step 3: Cross multiply
   2,577.32x = 3,863.38 × 1,018.43
4. Step 4: Simplify right side
   2,577.32x = 3,934,562.78
5. Step 5: Solve for x
   x = 3,934,562.78/2,577.32
6. Step 6: Final answer
   x = 1,526.61