Finding the Fourth Proportional to 1,456.90, 2,168.88 and 1,448.26

Step by Step Solution

1. Step 1: Write the proportion equation
   1,456.90 : 2,168.88 = 1,448.26 : x
2. Step 2: Convert to fraction form
   1,456.90/2,168.88 = 1,448.26/x
3. Step 3: Cross multiply
   1,456.90x = 2,168.88 × 1,448.26
4. Step 4: Simplify right side
   1,456.90x = 3,141,102.15
5. Step 5: Solve for x
   x = 3,141,102.15/1,456.90
6. Step 6: Final answer
   x = 2,156.02