Finding the Fourth Proportional to 3,619.49, 5,401.89 and 3,269.57

Step by Step Solution

1. Step 1: Write the proportion equation
   3,619.49 : 5,401.89 = 3,269.57 : x
2. Step 2: Convert to fraction form
   3,619.49/5,401.89 = 3,269.57/x
3. Step 3: Cross multiply
   3,619.49x = 5,401.89 × 3,269.57
4. Step 4: Simplify right side
   3,619.49x = 17,661,830.48
5. Step 5: Solve for x
   x = 17,661,830.48/3,619.49
6. Step 6: Final answer
   x = 4,879.65