Finding the Fourth Proportional to 2,288.76, 3,158.30 and 1,294.14

Step by Step Solution

1. Step 1: Write the proportion equation
   2,288.76 : 3,158.30 = 1,294.14 : x
2. Step 2: Convert to fraction form
   2,288.76/3,158.30 = 1,294.14/x
3. Step 3: Cross multiply
   2,288.76x = 3,158.30 × 1,294.14
4. Step 4: Simplify right side
   2,288.76x = 4,087,282.36
5. Step 5: Solve for x
   x = 4,087,282.36/2,288.76
6. Step 6: Final answer
   x = 1,785.81