Finding the Fourth Proportional to 1,158.26, 1,598.22 and 679.56

Step by Step Solution

1. Step 1: Write the proportion equation
   1,158.26 : 1,598.22 = 679.56 : x
2. Step 2: Convert to fraction form
   1,158.26/1,598.22 = 679.56/x
3. Step 3: Cross multiply
   1,158.26x = 1,598.22 × 679.56
4. Step 4: Simplify right side
   1,158.26x = 1,086,086.38
5. Step 5: Solve for x
   x = 1,086,086.38/1,158.26
6. Step 6: Final answer
   x = 937.69