Finding the Fourth Proportional to 2,289.10, 3,158.41 and 1,294.24

Step by Step Solution

1. Step 1: Write the proportion equation
   2,289.10 : 3,158.41 = 1,294.24 : x
2. Step 2: Convert to fraction form
   2,289.10/3,158.41 = 1,294.24/x
3. Step 3: Cross multiply
   2,289.10x = 3,158.41 × 1,294.24
4. Step 4: Simplify right side
   2,289.10x = 4,087,729.43
5. Step 5: Solve for x
   x = 4,087,729.43/2,289.10
6. Step 6: Final answer
   x = 1,785.74