Finding the Fourth Proportional to 3,320.57, 4,582.61 and 2,199.59

Step by Step Solution

1. Step 1: Write the proportion equation
   3,320.57 : 4,582.61 = 2,199.59 : x
2. Step 2: Convert to fraction form
   3,320.57/4,582.61 = 2,199.59/x
3. Step 3: Cross multiply
   3,320.57x = 4,582.61 × 2,199.59
4. Step 4: Simplify right side
   3,320.57x = 10,079,829.22
5. Step 5: Solve for x
   x = 10,079,829.22/3,320.57
6. Step 6: Final answer
   x = 3,035.58