Finding the Fourth Proportional to 2,023.96, 2,793.01 and 1,139.71

Step by Step Solution

1. Step 1: Write the proportion equation
   2,023.96 : 2,793.01 = 1,139.71 : x
2. Step 2: Convert to fraction form
   2,023.96/2,793.01 = 1,139.71/x
3. Step 3: Cross multiply
   2,023.96x = 2,793.01 × 1,139.71
4. Step 4: Simplify right side
   2,023.96x = 3,183,201.76
5. Step 5: Solve for x
   x = 3,183,201.76/2,023.96
6. Step 6: Final answer
   x = 1,572.76