Finding the Fourth Proportional to 2,157.21, 3,233.73 and 695.37

Step by Step Solution

1. Step 1: Write the proportion equation
   2,157.21 : 3,233.73 = 695.37 : x
2. Step 2: Convert to fraction form
   2,157.21/3,233.73 = 695.37/x
3. Step 3: Cross multiply
   2,157.21x = 3,233.73 × 695.37
4. Step 4: Simplify right side
   2,157.21x = 2,248,638.83
5. Step 5: Solve for x
   x = 2,248,638.83/2,157.21
6. Step 6: Final answer
   x = 1,042.38