Finding the Fourth Proportional to 1,082.45, 1,493.33 and 662.47

Step by Step Solution

1. Step 1: Write the proportion equation
   1,082.45 : 1,493.33 = 662.47 : x
2. Step 2: Convert to fraction form
   1,082.45/1,493.33 = 662.47/x
3. Step 3: Cross multiply
   1,082.45x = 1,493.33 × 662.47
4. Step 4: Simplify right side
   1,082.45x = 989,286.33
5. Step 5: Solve for x
   x = 989,286.33/1,082.45
6. Step 6: Final answer
   x = 913.93