Finding the Fourth Proportional to 3,980.42, 5,492.06 and 2,408.48

Step by Step Solution

1. Step 1: Write the proportion equation
   3,980.42 : 5,492.06 = 2,408.48 : x
2. Step 2: Convert to fraction form
   3,980.42/5,492.06 = 2,408.48/x
3. Step 3: Cross multiply
   3,980.42x = 5,492.06 × 2,408.48
4. Step 4: Simplify right side
   3,980.42x = 13,227,516.67
5. Step 5: Solve for x
   x = 13,227,516.67/3,980.42
6. Step 6: Final answer
   x = 3,323.15