Finding the Fourth Proportional to 3,419.82, 4,719.24 and 2,161.56

Step by Step Solution

1. Step 1: Write the proportion equation
   3,419.82 : 4,719.24 = 2,161.56 : x
2. Step 2: Convert to fraction form
   3,419.82/4,719.24 = 2,161.56/x
3. Step 3: Cross multiply
   3,419.82x = 4,719.24 × 2,161.56
4. Step 4: Simplify right side
   3,419.82x = 10,200,920.41
5. Step 5: Solve for x
   x = 10,200,920.41/3,419.82
6. Step 6: Final answer
   x = 2,982.88