Finding the Fourth Proportional to 2,922.23, 4,362.54 and 2,819.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,922.23 : 4,362.54 = 2,819.72 : x
2. Step 2: Convert to fraction form
   2,922.23/4,362.54 = 2,819.72/x
3. Step 3: Cross multiply
   2,922.23x = 4,362.54 × 2,819.72
4. Step 4: Simplify right side
   2,922.23x = 12,301,119.48
5. Step 5: Solve for x
   x = 12,301,119.48/2,922.23
6. Step 6: Final answer
   x = 4,209.50