Finding the Fourth Proportional to 2,218.68, 3,329.37 and 2,200.32

Step by Step Solution

1. Step 1: Write the proportion equation
   2,218.68 : 3,329.37 = 2,200.32 : x
2. Step 2: Convert to fraction form
   2,218.68/3,329.37 = 2,200.32/x
3. Step 3: Cross multiply
   2,218.68x = 3,329.37 × 2,200.32
4. Step 4: Simplify right side
   2,218.68x = 7,325,679.40
5. Step 5: Solve for x
   x = 7,325,679.40/2,218.68
6. Step 6: Final answer
   x = 3,301.82