Finding the Fourth Proportional to 2,083.73, 2,875.49 and 1,139.49

Step by Step Solution

1. Step 1: Write the proportion equation
   2,083.73 : 2,875.49 = 1,139.49 : x
2. Step 2: Convert to fraction form
   2,083.73/2,875.49 = 1,139.49/x
3. Step 3: Cross multiply
   2,083.73x = 2,875.49 × 1,139.49
4. Step 4: Simplify right side
   2,083.73x = 3,276,586.40
5. Step 5: Solve for x
   x = 3,276,586.40/2,083.73
6. Step 6: Final answer
   x = 1,572.47