Finding the Fourth Proportional to 1,199.29, 1,654.98 and 675.31

Step by Step Solution

1. Step 1: Write the proportion equation
   1,199.29 : 1,654.98 = 675.31 : x
2. Step 2: Convert to fraction form
   1,199.29/1,654.98 = 675.31/x
3. Step 3: Cross multiply
   1,199.29x = 1,654.98 × 675.31
4. Step 4: Simplify right side
   1,199.29x = 1,117,624.54
5. Step 5: Solve for x
   x = 1,117,624.54/1,199.29
6. Step 6: Final answer
   x = 931.91