Finding the Fourth Proportional to 1,158.03, 1,598.27 and 685.94

Step by Step Solution

1. Step 1: Write the proportion equation
   1,158.03 : 1,598.27 = 685.94 : x
2. Step 2: Convert to fraction form
   1,158.03/1,598.27 = 685.94/x
3. Step 3: Cross multiply
   1,158.03x = 1,598.27 × 685.94
4. Step 4: Simplify right side
   1,158.03x = 1,096,305.90
5. Step 5: Solve for x
   x = 1,096,305.90/1,158.03
6. Step 6: Final answer
   x = 946.70