Finding the Fourth Proportional to 1,146.49, 1,720.17 and 659.27

Step by Step Solution

1. Step 1: Write the proportion equation
   1,146.49 : 1,720.17 = 659.27 : x
2. Step 2: Convert to fraction form
   1,146.49/1,720.17 = 659.27/x
3. Step 3: Cross multiply
   1,146.49x = 1,720.17 × 659.27
4. Step 4: Simplify right side
   1,146.49x = 1,134,060.78
5. Step 5: Solve for x
   x = 1,134,060.78/1,146.49
6. Step 6: Final answer
   x = 989.16