Finding the Fourth Proportional to 3,243.43, 4,860.17 and 2,185.30

Step by Step Solution

1. Step 1: Write the proportion equation
   3,243.43 : 4,860.17 = 2,185.30 : x
2. Step 2: Convert to fraction form
   3,243.43/4,860.17 = 2,185.30/x
3. Step 3: Cross multiply
   3,243.43x = 4,860.17 × 2,185.30
4. Step 4: Simplify right side
   3,243.43x = 10,620,918.57
5. Step 5: Solve for x
   x = 10,620,918.57/3,243.43
6. Step 6: Final answer
   x = 3,274.59