Finding the Fourth Proportional to 2,158.56, 3,237.12 and 697.32

Step by Step Solution

1. Step 1: Write the proportion equation
   2,158.56 : 3,237.12 = 697.32 : x
2. Step 2: Convert to fraction form
   2,158.56/3,237.12 = 697.32/x
3. Step 3: Cross multiply
   2,158.56x = 3,237.12 × 697.32
4. Step 4: Simplify right side
   2,158.56x = 2,257,308.52
5. Step 5: Solve for x
   x = 2,257,308.52/2,158.56
6. Step 6: Final answer
   x = 1,045.75