Finding the Fourth Proportional to 3,897.29, 5,843.88 and 2,665.05

Step by Step Solution

1. Step 1: Write the proportion equation
   3,897.29 : 5,843.88 = 2,665.05 : x
2. Step 2: Convert to fraction form
   3,897.29/5,843.88 = 2,665.05/x
3. Step 3: Cross multiply
   3,897.29x = 5,843.88 × 2,665.05
4. Step 4: Simplify right side
   3,897.29x = 15,574,189.85
5. Step 5: Solve for x
   x = 15,574,189.85/3,897.29
6. Step 6: Final answer
   x = 3,996.16