Finding the Fourth Proportional to 2,643.43, 3,647.55 and 1,524.20

Step by Step Solution

1. Step 1: Write the proportion equation
   2,643.43 : 3,647.55 = 1,524.20 : x
2. Step 2: Convert to fraction form
   2,643.43/3,647.55 = 1,524.20/x
3. Step 3: Cross multiply
   2,643.43x = 3,647.55 × 1,524.20
4. Step 4: Simplify right side
   2,643.43x = 5,559,595.71
5. Step 5: Solve for x
   x = 5,559,595.71/2,643.43
6. Step 6: Final answer
   x = 2,103.18