Finding the Fourth Proportional to 2,156.72, 3,235.20 and 695.48

Step by Step Solution

1. Step 1: Write the proportion equation
   2,156.72 : 3,235.20 = 695.48 : x
2. Step 2: Convert to fraction form
   2,156.72/3,235.20 = 695.48/x
3. Step 3: Cross multiply
   2,156.72x = 3,235.20 × 695.48
4. Step 4: Simplify right side
   2,156.72x = 2,250,016.90
5. Step 5: Solve for x
   x = 2,250,016.90/2,156.72
6. Step 6: Final answer
   x = 1,043.26