Finding the Fourth Proportional to 2,288.54, 3,158.04 and 1,293.86

Step by Step Solution

1. Step 1: Write the proportion equation
   2,288.54 : 3,158.04 = 1,293.86 : x
2. Step 2: Convert to fraction form
   2,288.54/3,158.04 = 1,293.86/x
3. Step 3: Cross multiply
   2,288.54x = 3,158.04 × 1,293.86
4. Step 4: Simplify right side
   2,288.54x = 4,086,061.63
5. Step 5: Solve for x
   x = 4,086,061.63/2,288.54
6. Step 6: Final answer
   x = 1,785.44