Finding the Fourth Proportional to 2,023.29, 2,792.39 and 1,139.26

Step by Step Solution

1. Step 1: Write the proportion equation
   2,023.29 : 2,792.39 = 1,139.26 : x
2. Step 2: Convert to fraction form
   2,023.29/2,792.39 = 1,139.26/x
3. Step 3: Cross multiply
   2,023.29x = 2,792.39 × 1,139.26
4. Step 4: Simplify right side
   2,023.29x = 3,181,254.10
5. Step 5: Solve for x
   x = 3,181,254.10/2,023.29
6. Step 6: Final answer
   x = 1,572.32