Finding the Fourth Proportional to 2,155.89, 3,233.68 and 694.92

Step by Step Solution

1. Step 1: Write the proportion equation
   2,155.89 : 3,233.68 = 694.92 : x
2. Step 2: Convert to fraction form
   2,155.89/3,233.68 = 694.92/x
3. Step 3: Cross multiply
   2,155.89x = 3,233.68 × 694.92
4. Step 4: Simplify right side
   2,155.89x = 2,247,148.91
5. Step 5: Solve for x
   x = 2,247,148.91/2,155.89
6. Step 6: Final answer
   x = 1,042.33