Finding the Fourth Proportional to 2,149.25, 3,225.49 and 1,721.57

Step by Step Solution

1. Step 1: Write the proportion equation
   2,149.25 : 3,225.49 = 1,721.57 : x
2. Step 2: Convert to fraction form
   2,149.25/3,225.49 = 1,721.57/x
3. Step 3: Cross multiply
   2,149.25x = 3,225.49 × 1,721.57
4. Step 4: Simplify right side
   2,149.25x = 5,552,886.39
5. Step 5: Solve for x
   x = 5,552,886.39/2,149.25
6. Step 6: Final answer
   x = 2,583.65