Finding the Fourth Proportional to 3,610.29, 5,412.39 and 2,223.57

Step by Step Solution

1. Step 1: Write the proportion equation
   3,610.29 : 5,412.39 = 2,223.57 : x
2. Step 2: Convert to fraction form
   3,610.29/5,412.39 = 2,223.57/x
3. Step 3: Cross multiply
   3,610.29x = 5,412.39 × 2,223.57
4. Step 4: Simplify right side
   3,610.29x = 12,034,828.03
5. Step 5: Solve for x
   x = 12,034,828.03/3,610.29
6. Step 6: Final answer
   x = 3,333.48