Finding the Fourth Proportional to 2,288.92, 3,158.54 and 1,294.30

Step by Step Solution

1. Step 1: Write the proportion equation
   2,288.92 : 3,158.54 = 1,294.30 : x
2. Step 2: Convert to fraction form
   2,288.92/3,158.54 = 1,294.30/x
3. Step 3: Cross multiply
   2,288.92x = 3,158.54 × 1,294.30
4. Step 4: Simplify right side
   2,288.92x = 4,088,098.32
5. Step 5: Solve for x
   x = 4,088,098.32/2,288.92
6. Step 6: Final answer
   x = 1,786.04