Finding the Fourth Proportional to 2,408.43, 3,613.31 and 1,021.85

Step by Step Solution

1. Step 1: Write the proportion equation
   2,408.43 : 3,613.31 = 1,021.85 : x
2. Step 2: Convert to fraction form
   2,408.43/3,613.31 = 1,021.85/x
3. Step 3: Cross multiply
   2,408.43x = 3,613.31 × 1,021.85
4. Step 4: Simplify right side
   2,408.43x = 3,692,255.03
5. Step 5: Solve for x
   x = 3,692,255.03/2,408.43
6. Step 6: Final answer
   x = 1,533.05