Finding the Fourth Proportional to 2,643.36, 3,647.80 and 1,524.30

Step by Step Solution

1. Step 1: Write the proportion equation
   2,643.36 : 3,647.80 = 1,524.30 : x
2. Step 2: Convert to fraction form
   2,643.36/3,647.80 = 1,524.30/x
3. Step 3: Cross multiply
   2,643.36x = 3,647.80 × 1,524.30
4. Step 4: Simplify right side
   2,643.36x = 5,560,341.54
5. Step 5: Solve for x
   x = 5,560,341.54/2,643.36
6. Step 6: Final answer
   x = 2,103.51