Finding the Fourth Proportional to 1,721.54, 2,374.89 and 1,022.42

Step by Step Solution

1. Step 1: Write the proportion equation
   1,721.54 : 2,374.89 = 1,022.42 : x
2. Step 2: Convert to fraction form
   1,721.54/2,374.89 = 1,022.42/x
3. Step 3: Cross multiply
   1,721.54x = 2,374.89 × 1,022.42
4. Step 4: Simplify right side
   1,721.54x = 2,428,135.03
5. Step 5: Solve for x
   x = 2,428,135.03/1,721.54
6. Step 6: Final answer
   x = 1,410.44