Finding the Fourth Proportional to 2,017.44, 3,024.45 and 921.42

Step by Step Solution

1. Step 1: Write the proportion equation
   2,017.44 : 3,024.45 = 921.42 : x
2. Step 2: Convert to fraction form
   2,017.44/3,024.45 = 921.42/x
3. Step 3: Cross multiply
   2,017.44x = 3,024.45 × 921.42
4. Step 4: Simplify right side
   2,017.44x = 2,786,788.72
5. Step 5: Solve for x
   x = 2,786,788.72/2,017.44
6. Step 6: Final answer
   x = 1,381.35