Finding the Fourth Proportional to 2,158.01, 3,237.69 and 697.28

Step by Step Solution

1. Step 1: Write the proportion equation
   2,158.01 : 3,237.69 = 697.28 : x
2. Step 2: Convert to fraction form
   2,158.01/3,237.69 = 697.28/x
3. Step 3: Cross multiply
   2,158.01x = 3,237.69 × 697.28
4. Step 4: Simplify right side
   2,158.01x = 2,257,560.29
5. Step 5: Solve for x
   x = 2,257,560.29/2,158.01
6. Step 6: Final answer
   x = 1,046.13