Finding the Fourth Proportional to 2,288.86, 3,158.80 and 1,294.33

Step by Step Solution

1. Step 1: Write the proportion equation
   2,288.86 : 3,158.80 = 1,294.33 : x
2. Step 2: Convert to fraction form
   2,288.86/3,158.80 = 1,294.33/x
3. Step 3: Cross multiply
   2,288.86x = 3,158.80 × 1,294.33
4. Step 4: Simplify right side
   2,288.86x = 4,088,524.39
5. Step 5: Solve for x
   x = 4,088,524.39/2,288.86
6. Step 6: Final answer
   x = 1,786.27