Finding the Fourth Proportional to 2,643.89, 3,648.51 and 1,448.82

Step by Step Solution

1. Step 1: Write the proportion equation
   2,643.89 : 3,648.51 = 1,448.82 : x
2. Step 2: Convert to fraction form
   2,643.89/3,648.51 = 1,448.82/x
3. Step 3: Cross multiply
   2,643.89x = 3,648.51 × 1,448.82
4. Step 4: Simplify right side
   2,643.89x = 5,286,034.26
5. Step 5: Solve for x
   x = 5,286,034.26/2,643.89
6. Step 6: Final answer
   x = 1,999.34