Finding the Fourth Proportional to 2,408.13, 3,320.01 and 2,162.09

Step by Step Solution

1. Step 1: Write the proportion equation
   2,408.13 : 3,320.01 = 2,162.09 : x
2. Step 2: Convert to fraction form
   2,408.13/3,320.01 = 2,162.09/x
3. Step 3: Cross multiply
   2,408.13x = 3,320.01 × 2,162.09
4. Step 4: Simplify right side
   2,408.13x = 7,178,168.72
5. Step 5: Solve for x
   x = 7,178,168.72/2,408.13
6. Step 6: Final answer
   x = 2,980.81