Finding the Fourth Proportional to 2,288.42, 3,158.18 and 1,293.71

Step by Step Solution

1. Step 1: Write the proportion equation
   2,288.42 : 3,158.18 = 1,293.71 : x
2. Step 2: Convert to fraction form
   2,288.42/3,158.18 = 1,293.71/x
3. Step 3: Cross multiply
   2,288.42x = 3,158.18 × 1,293.71
4. Step 4: Simplify right side
   2,288.42x = 4,085,751.64
5. Step 5: Solve for x
   x = 4,085,751.64/2,288.42
6. Step 6: Final answer
   x = 1,785.40