Finding the Fourth Proportional to 3,838.98, 5,728.53 and 3,425.27

Step by Step Solution

1. Step 1: Write the proportion equation
   3,838.98 : 5,728.53 = 3,425.27 : x
2. Step 2: Convert to fraction form
   3,838.98/5,728.53 = 3,425.27/x
3. Step 3: Cross multiply
   3,838.98x = 5,728.53 × 3,425.27
4. Step 4: Simplify right side
   3,838.98x = 19,621,761.95
5. Step 5: Solve for x
   x = 19,621,761.95/3,838.98
6. Step 6: Final answer
   x = 5,111.19