Finding the Fourth Proportional to 2,456.34, 3,684.10 and 724.56

Step by Step Solution

1. Step 1: Write the proportion equation
   2,456.34 : 3,684.10 = 724.56 : x
2. Step 2: Convert to fraction form
   2,456.34/3,684.10 = 724.56/x
3. Step 3: Cross multiply
   2,456.34x = 3,684.10 × 724.56
4. Step 4: Simplify right side
   2,456.34x = 2,669,351.50
5. Step 5: Solve for x
   x = 2,669,351.50/2,456.34
6. Step 6: Final answer
   x = 1,086.72