Finding the Fourth Proportional to 1,101.22, 1,519.72 and 659.38

Step by Step Solution

1. Step 1: Write the proportion equation
   1,101.22 : 1,519.72 = 659.38 : x
2. Step 2: Convert to fraction form
   1,101.22/1,519.72 = 659.38/x
3. Step 3: Cross multiply
   1,101.22x = 1,519.72 × 659.38
4. Step 4: Simplify right side
   1,101.22x = 1,002,072.97
5. Step 5: Solve for x
   x = 1,002,072.97/1,101.22
6. Step 6: Final answer
   x = 909.97