Finding the Fourth Proportional to 1,786.08, 2,466.72 and 1,721.28

Step by Step Solution

1. Step 1: Write the proportion equation
   1,786.08 : 2,466.72 = 1,721.28 : x
2. Step 2: Convert to fraction form
   1,786.08/2,466.72 = 1,721.28/x
3. Step 3: Cross multiply
   1,786.08x = 2,466.72 × 1,721.28
4. Step 4: Simplify right side
   1,786.08x = 4,245,915.80
5. Step 5: Solve for x
   x = 4,245,915.80/1,786.08
6. Step 6: Final answer
   x = 2,377.23