Finding the Fourth Proportional to 2,577.44, 3,863.57 and 1,018.55

Step by Step Solution

1. Step 1: Write the proportion equation
   2,577.44 : 3,863.57 = 1,018.55 : x
2. Step 2: Convert to fraction form
   2,577.44/3,863.57 = 1,018.55/x
3. Step 3: Cross multiply
   2,577.44x = 3,863.57 × 1,018.55
4. Step 4: Simplify right side
   2,577.44x = 3,935,239.22
5. Step 5: Solve for x
   x = 3,935,239.22/2,577.44
6. Step 6: Final answer
   x = 1,526.80