Finding the Fourth Proportional to 1,055.05, 1,456.59 and 723.97

Step by Step Solution

1. Step 1: Write the proportion equation
   1,055.05 : 1,456.59 = 723.97 : x
2. Step 2: Convert to fraction form
   1,055.05/1,456.59 = 723.97/x
3. Step 3: Cross multiply
   1,055.05x = 1,456.59 × 723.97
4. Step 4: Simplify right side
   1,055.05x = 1,054,523.80
5. Step 5: Solve for x
   x = 1,054,523.80/1,055.05
6. Step 6: Final answer
   x = 999.50