Finding the Fourth Proportional to 3,819.42, 5,728.86 and 1,222.14

Step by Step Solution

1. Step 1: Write the proportion equation
   3,819.42 : 5,728.86 = 1,222.14 : x
2. Step 2: Convert to fraction form
   3,819.42/5,728.86 = 1,222.14/x
3. Step 3: Cross multiply
   3,819.42x = 5,728.86 × 1,222.14
4. Step 4: Simplify right side
   3,819.42x = 7,001,468.96
5. Step 5: Solve for x
   x = 7,001,468.96/3,819.42
6. Step 6: Final answer
   x = 1,833.12