Finding the Fourth Proportional to 1,456.92, 2,185.47 and 483.15

Step by Step Solution

1. Step 1: Write the proportion equation
   1,456.92 : 2,185.47 = 483.15 : x
2. Step 2: Convert to fraction form
   1,456.92/2,185.47 = 483.15/x
3. Step 3: Cross multiply
   1,456.92x = 2,185.47 × 483.15
4. Step 4: Simplify right side
   1,456.92x = 1,055,909.83
5. Step 5: Solve for x
   x = 1,055,909.83/1,456.92
6. Step 6: Final answer
   x = 724.75