Finding the Fourth Proportional to 2,517.68, 3,775.10 and 1,055.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,517.68 : 3,775.10 = 1,055.72 : x
2. Step 2: Convert to fraction form
   2,517.68/3,775.10 = 1,055.72/x
3. Step 3: Cross multiply
   2,517.68x = 3,775.10 × 1,055.72
4. Step 4: Simplify right side
   2,517.68x = 3,985,448.57
5. Step 5: Solve for x
   x = 3,985,448.57/2,517.68
6. Step 6: Final answer
   x = 1,582.98