Finding the Fourth Proportional to 2,017.78, 3,022.41 and 923.06

Step by Step Solution

1. Step 1: Write the proportion equation
   2,017.78 : 3,022.41 = 923.06 : x
2. Step 2: Convert to fraction form
   2,017.78/3,022.41 = 923.06/x
3. Step 3: Cross multiply
   2,017.78x = 3,022.41 × 923.06
4. Step 4: Simplify right side
   2,017.78x = 2,789,865.77
5. Step 5: Solve for x
   x = 2,789,865.77/2,017.78
6. Step 6: Final answer
   x = 1,382.64