Finding the Fourth Proportional to 2,156.96, 3,233.88 and 695.28

Step by Step Solution

1. Step 1: Write the proportion equation
   2,156.96 : 3,233.88 = 695.28 : x
2. Step 2: Convert to fraction form
   2,156.96/3,233.88 = 695.28/x
3. Step 3: Cross multiply
   2,156.96x = 3,233.88 × 695.28
4. Step 4: Simplify right side
   2,156.96x = 2,248,452.09
5. Step 5: Solve for x
   x = 2,248,452.09/2,156.96
6. Step 6: Final answer
   x = 1,042.42