Finding the Fourth Proportional to 1,103.82, 1,523.16 and 631.73

Step by Step Solution

1. Step 1: Write the proportion equation
   1,103.82 : 1,523.16 = 631.73 : x
2. Step 2: Convert to fraction form
   1,103.82/1,523.16 = 631.73/x
3. Step 3: Cross multiply
   1,103.82x = 1,523.16 × 631.73
4. Step 4: Simplify right side
   1,103.82x = 962,218.25
5. Step 5: Solve for x
   x = 962,218.25/1,103.82
6. Step 6: Final answer
   x = 871.72