Finding the Fourth Proportional to 1,086.48, 1,499.04 and 694.08

Step by Step Solution

1. Step 1: Write the proportion equation
   1,086.48 : 1,499.04 = 694.08 : x
2. Step 2: Convert to fraction form
   1,086.48/1,499.04 = 694.08/x
3. Step 3: Cross multiply
   1,086.48x = 1,499.04 × 694.08
4. Step 4: Simplify right side
   1,086.48x = 1,040,453.68
5. Step 5: Solve for x
   x = 1,040,453.68/1,086.48
6. Step 6: Final answer
   x = 957.64