Finding the Fourth Proportional to 2,288.41, 3,158.21 and 1,293.87

Step by Step Solution

1. Step 1: Write the proportion equation
   2,288.41 : 3,158.21 = 1,293.87 : x
2. Step 2: Convert to fraction form
   2,288.41/3,158.21 = 1,293.87/x
3. Step 3: Cross multiply
   2,288.41x = 3,158.21 × 1,293.87
4. Step 4: Simplify right side
   2,288.41x = 4,086,298.81
5. Step 5: Solve for x
   x = 4,086,298.81/2,288.41
6. Step 6: Final answer
   x = 1,785.65