Finding the Fourth Proportional to 2,288.48, 3,158.13 and 1,293.69

Step by Step Solution

1. Step 1: Write the proportion equation
   2,288.48 : 3,158.13 = 1,293.69 : x
2. Step 2: Convert to fraction form
   2,288.48/3,158.13 = 1,293.69/x
3. Step 3: Cross multiply
   2,288.48x = 3,158.13 × 1,293.69
4. Step 4: Simplify right side
   2,288.48x = 4,085,641.20
5. Step 5: Solve for x
   x = 4,085,641.20/2,288.48
6. Step 6: Final answer
   x = 1,785.31