Finding the Fourth Proportional to 3,819.32, 5,729.52 and 1,222.28

Step by Step Solution

1. Step 1: Write the proportion equation
   3,819.32 : 5,729.52 = 1,222.28 : x
2. Step 2: Convert to fraction form
   3,819.32/5,729.52 = 1,222.28/x
3. Step 3: Cross multiply
   3,819.32x = 5,729.52 × 1,222.28
4. Step 4: Simplify right side
   3,819.32x = 7,003,077.71
5. Step 5: Solve for x
   x = 7,003,077.71/3,819.32
6. Step 6: Final answer
   x = 1,833.59