Finding the Fourth Proportional to 4,809.98, 7,217.71 and 2,965.61

Step by Step Solution

1. Step 1: Write the proportion equation
   4,809.98 : 7,217.71 = 2,965.61 : x
2. Step 2: Convert to fraction form
   4,809.98/7,217.71 = 2,965.61/x
3. Step 3: Cross multiply
   4,809.98x = 7,217.71 × 2,965.61
4. Step 4: Simplify right side
   4,809.98x = 21,404,923.58
5. Step 5: Solve for x
   x = 21,404,923.58/4,809.98
6. Step 6: Final answer
   x = 4,450.10