Finding the Fourth Proportional to 3,819.36, 5,728.83 and 1,222.10

Step by Step Solution

1. Step 1: Write the proportion equation
   3,819.36 : 5,728.83 = 1,222.10 : x
2. Step 2: Convert to fraction form
   3,819.36/5,728.83 = 1,222.10/x
3. Step 3: Cross multiply
   3,819.36x = 5,728.83 × 1,222.10
4. Step 4: Simplify right side
   3,819.36x = 7,001,203.14
5. Step 5: Solve for x
   x = 7,001,203.14/3,819.36
6. Step 6: Final answer
   x = 1,833.08