Finding the Fourth Proportional to 1,087.58, 1,501.23 and 694.52

Step by Step Solution

1. Step 1: Write the proportion equation
   1,087.58 : 1,501.23 = 694.52 : x
2. Step 2: Convert to fraction form
   1,087.58/1,501.23 = 694.52/x
3. Step 3: Cross multiply
   1,087.58x = 1,501.23 × 694.52
4. Step 4: Simplify right side
   1,087.58x = 1,042,626.75
5. Step 5: Solve for x
   x = 1,042,626.75/1,087.58
6. Step 6: Final answer
   x = 958.67