Finding the Fourth Proportional to 1,087.14, 1,499.86 and 694.38

Step by Step Solution

1. Step 1: Write the proportion equation
   1,087.14 : 1,499.86 = 694.38 : x
2. Step 2: Convert to fraction form
   1,087.14/1,499.86 = 694.38/x
3. Step 3: Cross multiply
   1,087.14x = 1,499.86 × 694.38
4. Step 4: Simplify right side
   1,087.14x = 1,041,472.79
5. Step 5: Solve for x
   x = 1,041,472.79/1,087.14
6. Step 6: Final answer
   x = 957.99