Finding the Fourth Proportional to 1,456.89, 2,185.34 and 483.07

Step by Step Solution

1. Step 1: Write the proportion equation
   1,456.89 : 2,185.34 = 483.07 : x
2. Step 2: Convert to fraction form
   1,456.89/2,185.34 = 483.07/x
3. Step 3: Cross multiply
   1,456.89x = 2,185.34 × 483.07
4. Step 4: Simplify right side
   1,456.89x = 1,055,658.85
5. Step 5: Solve for x
   x = 1,055,658.85/1,456.89
6. Step 6: Final answer
   x = 724.60