Finding the Fourth Proportional to 2,108.89, 2,911.04 and 1,715.23

Step by Step Solution

1. Step 1: Write the proportion equation
   2,108.89 : 2,911.04 = 1,715.23 : x
2. Step 2: Convert to fraction form
   2,108.89/2,911.04 = 1,715.23/x
3. Step 3: Cross multiply
   2,108.89x = 2,911.04 × 1,715.23
4. Step 4: Simplify right side
   2,108.89x = 4,993,103.14
5. Step 5: Solve for x
   x = 4,993,103.14/2,108.89
6. Step 6: Final answer
   x = 2,367.65