Finding the Fourth Proportional to 1,448.27, 1,998.23 and 858.54

Step by Step Solution

1. Step 1: Write the proportion equation
   1,448.27 : 1,998.23 = 858.54 : x
2. Step 2: Convert to fraction form
   1,448.27/1,998.23 = 858.54/x
3. Step 3: Cross multiply
   1,448.27x = 1,998.23 × 858.54
4. Step 4: Simplify right side
   1,448.27x = 1,715,560.38
5. Step 5: Solve for x
   x = 1,715,560.38/1,448.27
6. Step 6: Final answer
   x = 1,184.56