Finding the Fourth Proportional to 2,680.56, 4,020.38 and 732.30

Step by Step Solution

1. Step 1: Write the proportion equation
   2,680.56 : 4,020.38 = 732.30 : x
2. Step 2: Convert to fraction form
   2,680.56/4,020.38 = 732.30/x
3. Step 3: Cross multiply
   2,680.56x = 4,020.38 × 732.30
4. Step 4: Simplify right side
   2,680.56x = 2,944,124.27
5. Step 5: Solve for x
   x = 2,944,124.27/2,680.56
6. Step 6: Final answer
   x = 1,098.32