Finding the Fourth Proportional to 1,105.11, 1,524.72 and 633.03

Step by Step Solution

1. Step 1: Write the proportion equation
   1,105.11 : 1,524.72 = 633.03 : x
2. Step 2: Convert to fraction form
   1,105.11/1,524.72 = 633.03/x
3. Step 3: Cross multiply
   1,105.11x = 1,524.72 × 633.03
4. Step 4: Simplify right side
   1,105.11x = 965,193.50
5. Step 5: Solve for x
   x = 965,193.50/1,105.11
6. Step 6: Final answer
   x = 873.39