Finding the Fourth Proportional to 3,838.53, 5,753.28 and 2,196.21

Step by Step Solution

1. Step 1: Write the proportion equation
   3,838.53 : 5,753.28 = 2,196.21 : x
2. Step 2: Convert to fraction form
   3,838.53/5,753.28 = 2,196.21/x
3. Step 3: Cross multiply
   3,838.53x = 5,753.28 × 2,196.21
4. Step 4: Simplify right side
   3,838.53x = 12,635,411.07
5. Step 5: Solve for x
   x = 12,635,411.07/3,838.53
6. Step 6: Final answer
   x = 3,291.73