Finding the Fourth Proportional to 2,155.92, 3,233.76 and 696.12

Step by Step Solution

1. Step 1: Write the proportion equation
   2,155.92 : 3,233.76 = 696.12 : x
2. Step 2: Convert to fraction form
   2,155.92/3,233.76 = 696.12/x
3. Step 3: Cross multiply
   2,155.92x = 3,233.76 × 696.12
4. Step 4: Simplify right side
   2,155.92x = 2,251,085.01
5. Step 5: Solve for x
   x = 2,251,085.01/2,155.92
6. Step 6: Final answer
   x = 1,044.14