Finding the Fourth Proportional to 1,087.35, 1,500.78 and 694.27

Step by Step Solution

1. Step 1: Write the proportion equation
   1,087.35 : 1,500.78 = 694.27 : x
2. Step 2: Convert to fraction form
   1,087.35/1,500.78 = 694.27/x
3. Step 3: Cross multiply
   1,087.35x = 1,500.78 × 694.27
4. Step 4: Simplify right side
   1,087.35x = 1,041,946.53
5. Step 5: Solve for x
   x = 1,041,946.53/1,087.35
6. Step 6: Final answer
   x = 958.24