Finding the Fourth Proportional to 2,023.94, 2,793.03 and 1,139.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,023.94 : 2,793.03 = 1,139.72 : x
2. Step 2: Convert to fraction form
   2,023.94/2,793.03 = 1,139.72/x
3. Step 3: Cross multiply
   2,023.94x = 2,793.03 × 1,139.72
4. Step 4: Simplify right side
   2,023.94x = 3,183,272.15
5. Step 5: Solve for x
   x = 3,183,272.15/2,023.94
6. Step 6: Final answer
   x = 1,572.81