Finding the Fourth Proportional to 2,023.27, 2,792.24 and 1,139.15

Step by Step Solution

1. Step 1: Write the proportion equation
   2,023.27 : 2,792.24 = 1,139.15 : x
2. Step 2: Convert to fraction form
   2,023.27/2,792.24 = 1,139.15/x
3. Step 3: Cross multiply
   2,023.27x = 2,792.24 × 1,139.15
4. Step 4: Simplify right side
   2,023.27x = 3,180,780.20
5. Step 5: Solve for x
   x = 3,180,780.20/2,023.27
6. Step 6: Final answer
   x = 1,572.10