Finding the Fourth Proportional to 2,023.46, 2,792.38 and 1,139.27

Step by Step Solution

1. Step 1: Write the proportion equation
   2,023.46 : 2,792.38 = 1,139.27 : x
2. Step 2: Convert to fraction form
   2,023.46/2,792.38 = 1,139.27/x
3. Step 3: Cross multiply
   2,023.46x = 2,792.38 × 1,139.27
4. Step 4: Simplify right side
   2,023.46x = 3,181,278.90
5. Step 5: Solve for x
   x = 3,181,278.90/2,023.46
6. Step 6: Final answer
   x = 1,572.20