Finding the Fourth Proportional to 1,086.67, 1,499.49 and 608.04

Step by Step Solution

1. Step 1: Write the proportion equation
   1,086.67 : 1,499.49 = 608.04 : x
2. Step 2: Convert to fraction form
   1,086.67/1,499.49 = 608.04/x
3. Step 3: Cross multiply
   1,086.67x = 1,499.49 × 608.04
4. Step 4: Simplify right side
   1,086.67x = 911,749.90
5. Step 5: Solve for x
   x = 911,749.90/1,086.67
6. Step 6: Final answer
   x = 839.03