Finding the Fourth Proportional to 3,321.05, 4,580.69 and 2,185.34

Step by Step Solution

1. Step 1: Write the proportion equation
   3,321.05 : 4,580.69 = 2,185.34 : x
2. Step 2: Convert to fraction form
   3,321.05/4,580.69 = 2,185.34/x
3. Step 3: Cross multiply
   3,321.05x = 4,580.69 × 2,185.34
4. Step 4: Simplify right side
   3,321.05x = 10,010,354.16
5. Step 5: Solve for x
   x = 10,010,354.16/3,321.05
6. Step 6: Final answer
   x = 3,014.22