Finding the Fourth Proportional to 1,198.96, 1,654.37 and 674.89

Step by Step Solution

1. Step 1: Write the proportion equation
   1,198.96 : 1,654.37 = 674.89 : x
2. Step 2: Convert to fraction form
   1,198.96/1,654.37 = 674.89/x
3. Step 3: Cross multiply
   1,198.96x = 1,654.37 × 674.89
4. Step 4: Simplify right side
   1,198.96x = 1,116,509.50
5. Step 5: Solve for x
   x = 1,116,509.50/1,198.96
6. Step 6: Final answer
   x = 931.24