Finding the Fourth Proportional to 2,019.05, 3,029.34 and 922.64

Step by Step Solution

1. Step 1: Write the proportion equation
   2,019.05 : 3,029.34 = 922.64 : x
2. Step 2: Convert to fraction form
   2,019.05/3,029.34 = 922.64/x
3. Step 3: Cross multiply
   2,019.05x = 3,029.34 × 922.64
4. Step 4: Simplify right side
   2,019.05x = 2,794,989.12
5. Step 5: Solve for x
   x = 2,794,989.12/2,019.05
6. Step 6: Final answer
   x = 1,384.31