Finding the Fourth Proportional to 2,408.16, 3,613.56 and 1,021.32

Step by Step Solution

1. Step 1: Write the proportion equation
   2,408.16 : 3,613.56 = 1,021.32 : x
2. Step 2: Convert to fraction form
   2,408.16/3,613.56 = 1,021.32/x
3. Step 3: Cross multiply
   2,408.16x = 3,613.56 × 1,021.32
4. Step 4: Simplify right side
   2,408.16x = 3,690,601.10
5. Step 5: Solve for x
   x = 3,690,601.10/2,408.16
6. Step 6: Final answer
   x = 1,532.54