Finding the Fourth Proportional to 3,100.29, 4,279.41 and 2,108.58

Step by Step Solution

1. Step 1: Write the proportion equation
   3,100.29 : 4,279.41 = 2,108.58 : x
2. Step 2: Convert to fraction form
   3,100.29/4,279.41 = 2,108.58/x
3. Step 3: Cross multiply
   3,100.29x = 4,279.41 × 2,108.58
4. Step 4: Simplify right side
   3,100.29x = 9,023,478.34
5. Step 5: Solve for x
   x = 9,023,478.34/3,100.29
6. Step 6: Final answer
   x = 2,910.53