Finding the Fourth Proportional to 1,721.22, 2,375.25 and 935.27

Step by Step Solution

1. Step 1: Write the proportion equation
   1,721.22 : 2,375.25 = 935.27 : x
2. Step 2: Convert to fraction form
   1,721.22/2,375.25 = 935.27/x
3. Step 3: Cross multiply
   1,721.22x = 2,375.25 × 935.27
4. Step 4: Simplify right side
   1,721.22x = 2,221,493.59
5. Step 5: Solve for x
   x = 2,221,493.59/1,721.22
6. Step 6: Final answer
   x = 1,290.65