Finding the Fourth Proportional to 2,023.35, 2,792.27 and 1,139.18

Step by Step Solution

1. Step 1: Write the proportion equation
   2,023.35 : 2,792.27 = 1,139.18 : x
2. Step 2: Convert to fraction form
   2,023.35/2,792.27 = 1,139.18/x
3. Step 3: Cross multiply
   2,023.35x = 2,792.27 × 1,139.18
4. Step 4: Simplify right side
   2,023.35x = 3,180,902.73
5. Step 5: Solve for x
   x = 3,180,902.73/2,023.35
6. Step 6: Final answer
   x = 1,572.10