Finding the Fourth Proportional to 2,019.28, 3,029.20 and 923.92

Step by Step Solution

1. Step 1: Write the proportion equation
   2,019.28 : 3,029.20 = 923.92 : x
2. Step 2: Convert to fraction form
   2,019.28/3,029.20 = 923.92/x
3. Step 3: Cross multiply
   2,019.28x = 3,029.20 × 923.92
4. Step 4: Simplify right side
   2,019.28x = 2,798,738.46
5. Step 5: Solve for x
   x = 2,798,738.46/2,019.28
6. Step 6: Final answer
   x = 1,386.01