Finding the Fourth Proportional to 2,643.45, 3,648.20 and 1,524.57

Step by Step Solution

1. Step 1: Write the proportion equation
   2,643.45 : 3,648.20 = 1,524.57 : x
2. Step 2: Convert to fraction form
   2,643.45/3,648.20 = 1,524.57/x
3. Step 3: Cross multiply
   2,643.45x = 3,648.20 × 1,524.57
4. Step 4: Simplify right side
   2,643.45x = 5,561,936.27
5. Step 5: Solve for x
   x = 5,561,936.27/2,643.45
6. Step 6: Final answer
   x = 2,104.04