Finding the Fourth Proportional to 2,155.59, 3,233.89 and 694.69

Step by Step Solution

1. Step 1: Write the proportion equation
   2,155.59 : 3,233.89 = 694.69 : x
2. Step 2: Convert to fraction form
   2,155.59/3,233.89 = 694.69/x
3. Step 3: Cross multiply
   2,155.59x = 3,233.89 × 694.69
4. Step 4: Simplify right side
   2,155.59x = 2,246,531.40
5. Step 5: Solve for x
   x = 2,246,531.40/2,155.59
6. Step 6: Final answer
   x = 1,042.19