Finding the Fourth Proportional to 2,620.34, 3,610.54 and 2,408.12

Step by Step Solution

1. Step 1: Write the proportion equation
   2,620.34 : 3,610.54 = 2,408.12 : x
2. Step 2: Convert to fraction form
   2,620.34/3,610.54 = 2,408.12/x
3. Step 3: Cross multiply
   2,620.34x = 3,610.54 × 2,408.12
4. Step 4: Simplify right side
   2,620.34x = 8,694,613.58
5. Step 5: Solve for x
   x = 8,694,613.58/2,620.34
6. Step 6: Final answer
   x = 3,318.12