Finding the Fourth Proportional to 1,448.53, 2,171.72 and 871.27

Step by Step Solution

1. Step 1: Write the proportion equation
   1,448.53 : 2,171.72 = 871.27 : x
2. Step 2: Convert to fraction form
   1,448.53/2,171.72 = 871.27/x
3. Step 3: Cross multiply
   1,448.53x = 2,171.72 × 871.27
4. Step 4: Simplify right side
   1,448.53x = 1,892,150.13
5. Step 5: Solve for x
   x = 1,892,150.13/1,448.53
6. Step 6: Final answer
   x = 1,306.26