Finding the Fourth Proportional to 2,114.89, 2,919.32 and 1,721.23

Step by Step Solution

1. Step 1: Write the proportion equation
   2,114.89 : 2,919.32 = 1,721.23 : x
2. Step 2: Convert to fraction form
   2,114.89/2,919.32 = 1,721.23/x
3. Step 3: Cross multiply
   2,114.89x = 2,919.32 × 1,721.23
4. Step 4: Simplify right side
   2,114.89x = 5,024,821.16
5. Step 5: Solve for x
   x = 5,024,821.16/2,114.89
6. Step 6: Final answer
   x = 2,375.93