Finding the Fourth Proportional to 1,183.96, 1,633.89 and 660.03

Step by Step Solution

1. Step 1: Write the proportion equation
   1,183.96 : 1,633.89 = 660.03 : x
2. Step 2: Convert to fraction form
   1,183.96/1,633.89 = 660.03/x
3. Step 3: Cross multiply
   1,183.96x = 1,633.89 × 660.03
4. Step 4: Simplify right side
   1,183.96x = 1,078,416.42
5. Step 5: Solve for x
   x = 1,078,416.42/1,183.96
6. Step 6: Final answer
   x = 910.86