Finding the Fourth Proportional to 3,868.89, 5,337.12 and 2,608.35

Step by Step Solution

1. Step 1: Write the proportion equation
   3,868.89 : 5,337.12 = 2,608.35 : x
2. Step 2: Convert to fraction form
   3,868.89/5,337.12 = 2,608.35/x
3. Step 3: Cross multiply
   3,868.89x = 5,337.12 × 2,608.35
4. Step 4: Simplify right side
   3,868.89x = 13,921,076.95
5. Step 5: Solve for x
   x = 13,921,076.95/3,868.89
6. Step 6: Final answer
   x = 3,598.21