Finding the Fourth Proportional to 2,518.24, 3,776.52 and 1,057.12

Step by Step Solution

1. Step 1: Write the proportion equation
   2,518.24 : 3,776.52 = 1,057.12 : x
2. Step 2: Convert to fraction form
   2,518.24/3,776.52 = 1,057.12/x
3. Step 3: Cross multiply
   2,518.24x = 3,776.52 × 1,057.12
4. Step 4: Simplify right side
   2,518.24x = 3,992,234.82
5. Step 5: Solve for x
   x = 3,992,234.82/2,518.24
6. Step 6: Final answer
   x = 1,585.33