Finding the Fourth Proportional to 2,819.56, 3,889.56 and 1,922.62

Step by Step Solution

1. Step 1: Write the proportion equation
   2,819.56 : 3,889.56 = 1,922.62 : x
2. Step 2: Convert to fraction form
   2,819.56/3,889.56 = 1,922.62/x
3. Step 3: Cross multiply
   2,819.56x = 3,889.56 × 1,922.62
4. Step 4: Simplify right side
   2,819.56x = 7,478,145.85
5. Step 5: Solve for x
   x = 7,478,145.85/2,819.56
6. Step 6: Final answer
   x = 2,652.24