Finding the Fourth Proportional to 3,838.20, 5,723.69 and 3,803.16

Step by Step Solution

1. Step 1: Write the proportion equation
   3,838.20 : 5,723.69 = 3,803.16 : x
2. Step 2: Convert to fraction form
   3,838.20/5,723.69 = 3,803.16/x
3. Step 3: Cross multiply
   3,838.20x = 5,723.69 × 3,803.16
4. Step 4: Simplify right side
   3,838.20x = 21,768,108.86
5. Step 5: Solve for x
   x = 21,768,108.86/3,838.20
6. Step 6: Final answer
   x = 5,671.44