Finding the Fourth Proportional to 1,069.34, 1,605.02 and 659.27

Step by Step Solution

1. Step 1: Write the proportion equation
   1,069.34 : 1,605.02 = 659.27 : x
2. Step 2: Convert to fraction form
   1,069.34/1,605.02 = 659.27/x
3. Step 3: Cross multiply
   1,069.34x = 1,605.02 × 659.27
4. Step 4: Simplify right side
   1,069.34x = 1,058,142.25
5. Step 5: Solve for x
   x = 1,058,142.25/1,069.34
6. Step 6: Final answer
   x = 989.53