Finding the Fourth Proportional to 2,774.57, 4,162.37 and 925.20

Step by Step Solution

1. Step 1: Write the proportion equation
   2,774.57 : 4,162.37 = 925.20 : x
2. Step 2: Convert to fraction form
   2,774.57/4,162.37 = 925.20/x
3. Step 3: Cross multiply
   2,774.57x = 4,162.37 × 925.20
4. Step 4: Simplify right side
   2,774.57x = 3,851,020.10
5. Step 5: Solve for x
   x = 3,851,020.10/2,774.57
6. Step 6: Final answer
   x = 1,387.97