Finding the Fourth Proportional to 2,288.73, 3,158.46 and 1,294.10

Step by Step Solution

1. Step 1: Write the proportion equation
   2,288.73 : 3,158.46 = 1,294.10 : x
2. Step 2: Convert to fraction form
   2,288.73/3,158.46 = 1,294.10/x
3. Step 3: Cross multiply
   2,288.73x = 3,158.46 × 1,294.10
4. Step 4: Simplify right side
   2,288.73x = 4,087,363.09
5. Step 5: Solve for x
   x = 4,087,363.09/2,288.73
6. Step 6: Final answer
   x = 1,785.87