Finding the Fourth Proportional to 2,408.56, 3,326.56 and 1,621.24

Step by Step Solution

1. Step 1: Write the proportion equation
   2,408.56 : 3,326.56 = 1,621.24 : x
2. Step 2: Convert to fraction form
   2,408.56/3,326.56 = 1,621.24/x
3. Step 3: Cross multiply
   2,408.56x = 3,326.56 × 1,621.24
4. Step 4: Simplify right side
   2,408.56x = 5,393,144.03
5. Step 5: Solve for x
   x = 5,393,144.03/2,408.56
6. Step 6: Final answer
   x = 2,239.16