Finding the Fourth Proportional to 1,101.83, 1,520.69 and 659.76

Step by Step Solution

1. Step 1: Write the proportion equation
   1,101.83 : 1,520.69 = 659.76 : x
2. Step 2: Convert to fraction form
   1,101.83/1,520.69 = 659.76/x
3. Step 3: Cross multiply
   1,101.83x = 1,520.69 × 659.76
4. Step 4: Simplify right side
   1,101.83x = 1,003,287.14
5. Step 5: Solve for x
   x = 1,003,287.14/1,101.83
6. Step 6: Final answer
   x = 910.57