Finding the Fourth Proportional to 2,338.89, 3,510.54 and 1,720.71

Step by Step Solution

1. Step 1: Write the proportion equation
   2,338.89 : 3,510.54 = 1,720.71 : x
2. Step 2: Convert to fraction form
   2,338.89/3,510.54 = 1,720.71/x
3. Step 3: Cross multiply
   2,338.89x = 3,510.54 × 1,720.71
4. Step 4: Simplify right side
   2,338.89x = 6,040,621.28
5. Step 5: Solve for x
   x = 6,040,621.28/2,338.89
6. Step 6: Final answer
   x = 2,582.69