Finding the Fourth Proportional to 2,108.50, 3,160.96 and 875.14

Step by Step Solution

1. Step 1: Write the proportion equation
   2,108.50 : 3,160.96 = 875.14 : x
2. Step 2: Convert to fraction form
   2,108.50/3,160.96 = 875.14/x
3. Step 3: Cross multiply
   2,108.50x = 3,160.96 × 875.14
4. Step 4: Simplify right side
   2,108.50x = 2,766,262.35
5. Step 5: Solve for x
   x = 2,766,262.35/2,108.50
6. Step 6: Final answer
   x = 1,311.96