Finding the Fourth Proportional to 3,218.48, 4,443.01 and 2,422.10

Step by Step Solution

1. Step 1: Write the proportion equation
   3,218.48 : 4,443.01 = 2,422.10 : x
2. Step 2: Convert to fraction form
   3,218.48/4,443.01 = 2,422.10/x
3. Step 3: Cross multiply
   3,218.48x = 4,443.01 × 2,422.10
4. Step 4: Simplify right side
   3,218.48x = 10,761,419.57
5. Step 5: Solve for x
   x = 10,761,419.57/3,218.48
6. Step 6: Final answer
   x = 3,343.64