Finding the Fourth Proportional to 2,288.87, 3,158.55 and 1,293.93

Step by Step Solution

1. Step 1: Write the proportion equation
   2,288.87 : 3,158.55 = 1,293.93 : x
2. Step 2: Convert to fraction form
   2,288.87/3,158.55 = 1,293.93/x
3. Step 3: Cross multiply
   2,288.87x = 3,158.55 × 1,293.93
4. Step 4: Simplify right side
   2,288.87x = 4,086,942.60
5. Step 5: Solve for x
   x = 4,086,942.60/2,288.87
6. Step 6: Final answer
   x = 1,785.58