Finding the Fourth Proportional to 2,083.52, 2,875.17 and 1,139.27

Step by Step Solution

1. Step 1: Write the proportion equation
   2,083.52 : 2,875.17 = 1,139.27 : x
2. Step 2: Convert to fraction form
   2,083.52/2,875.17 = 1,139.27/x
3. Step 3: Cross multiply
   2,083.52x = 2,875.17 × 1,139.27
4. Step 4: Simplify right side
   2,083.52x = 3,275,594.93
5. Step 5: Solve for x
   x = 3,275,594.93/2,083.52
6. Step 6: Final answer
   x = 1,572.14