Finding the Fourth Proportional to 3,980.82, 5,494.05 and 2,408.94

Step by Step Solution

1. Step 1: Write the proportion equation
   3,980.82 : 5,494.05 = 2,408.94 : x
2. Step 2: Convert to fraction form
   3,980.82/5,494.05 = 2,408.94/x
3. Step 3: Cross multiply
   3,980.82x = 5,494.05 × 2,408.94
4. Step 4: Simplify right side
   3,980.82x = 13,234,836.81
5. Step 5: Solve for x
   x = 13,234,836.81/3,980.82
6. Step 6: Final answer
   x = 3,324.65