Finding the Fourth Proportional to 2,288.39, 3,158.17 and 1,293.74

Step by Step Solution

1. Step 1: Write the proportion equation
   2,288.39 : 3,158.17 = 1,293.74 : x
2. Step 2: Convert to fraction form
   2,288.39/3,158.17 = 1,293.74/x
3. Step 3: Cross multiply
   2,288.39x = 3,158.17 × 1,293.74
4. Step 4: Simplify right side
   2,288.39x = 4,085,835.06
5. Step 5: Solve for x
   x = 4,085,835.06/2,288.39
6. Step 6: Final answer
   x = 1,785.46