Finding the Fourth Proportional to 2,288.45, 3,157.98 and 1,293.74

Step by Step Solution

1. Step 1: Write the proportion equation
   2,288.45 : 3,157.98 = 1,293.74 : x
2. Step 2: Convert to fraction form
   2,288.45/3,157.98 = 1,293.74/x
3. Step 3: Cross multiply
   2,288.45x = 3,157.98 × 1,293.74
4. Step 4: Simplify right side
   2,288.45x = 4,085,589.26
5. Step 5: Solve for x
   x = 4,085,589.26/2,288.45
6. Step 6: Final answer
   x = 1,785.31