Finding the Fourth Proportional to 2,108.89, 2,910.50 and 1,323.19

Step by Step Solution

1. Step 1: Write the proportion equation
   2,108.89 : 2,910.50 = 1,323.19 : x
2. Step 2: Convert to fraction form
   2,108.89/2,910.50 = 1,323.19/x
3. Step 3: Cross multiply
   2,108.89x = 2,910.50 × 1,323.19
4. Step 4: Simplify right side
   2,108.89x = 3,851,144.50
5. Step 5: Solve for x
   x = 3,851,144.50/2,108.89
6. Step 6: Final answer
   x = 1,826.15