Finding the Fourth Proportional to 2,868.50, 4,304.38 and 1,329.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,868.50 : 4,304.38 = 1,329.50 : x
2. Step 2: Convert to fraction form
   2,868.50/4,304.38 = 1,329.50/x
3. Step 3: Cross multiply
   2,868.50x = 4,304.38 × 1,329.50
4. Step 4: Simplify right side
   2,868.50x = 5,722,673.21
5. Step 5: Solve for x
   x = 5,722,673.21/2,868.50
6. Step 6: Final answer
   x = 1,995.01