Finding the Fourth Proportional to 2,643.21, 3,647.43 and 1,524.06

Step by Step Solution

1. Step 1: Write the proportion equation
   2,643.21 : 3,647.43 = 1,524.06 : x
2. Step 2: Convert to fraction form
   2,643.21/3,647.43 = 1,524.06/x
3. Step 3: Cross multiply
   2,643.21x = 3,647.43 × 1,524.06
4. Step 4: Simplify right side
   2,643.21x = 5,558,902.17
5. Step 5: Solve for x
   x = 5,558,902.17/2,643.21
6. Step 6: Final answer
   x = 2,103.09