Finding the Fourth Proportional to 1,105.24, 1,656.59 and 488.73

Step by Step Solution

1. Step 1: Write the proportion equation
   1,105.24 : 1,656.59 = 488.73 : x
2. Step 2: Convert to fraction form
   1,105.24/1,656.59 = 488.73/x
3. Step 3: Cross multiply
   1,105.24x = 1,656.59 × 488.73
4. Step 4: Simplify right side
   1,105.24x = 809,625.23
5. Step 5: Solve for x
   x = 809,625.23/1,105.24
6. Step 6: Final answer
   x = 732.53