Finding the Fourth Proportional to 1,082.27, 1,493.70 and 690.23

Step by Step Solution

1. Step 1: Write the proportion equation
   1,082.27 : 1,493.70 = 690.23 : x
2. Step 2: Convert to fraction form
   1,082.27/1,493.70 = 690.23/x
3. Step 3: Cross multiply
   1,082.27x = 1,493.70 × 690.23
4. Step 4: Simplify right side
   1,082.27x = 1,030,996.55
5. Step 5: Solve for x
   x = 1,030,996.55/1,082.27
6. Step 6: Final answer
   x = 952.62