Finding the Fourth Proportional to 1,082.07, 1,493.25 and 616.41

Step by Step Solution

1. Step 1: Write the proportion equation
   1,082.07 : 1,493.25 = 616.41 : x
2. Step 2: Convert to fraction form
   1,082.07/1,493.25 = 616.41/x
3. Step 3: Cross multiply
   1,082.07x = 1,493.25 × 616.41
4. Step 4: Simplify right side
   1,082.07x = 920,454.23
5. Step 5: Solve for x
   x = 920,454.23/1,082.07
6. Step 6: Final answer
   x = 850.64