Finding the Fourth Proportional to 3,897.27, 5,848.71 and 2,644.76

Step by Step Solution

1. Step 1: Write the proportion equation
   3,897.27 : 5,848.71 = 2,644.76 : x
2. Step 2: Convert to fraction form
   3,897.27/5,848.71 = 2,644.76/x
3. Step 3: Cross multiply
   3,897.27x = 5,848.71 × 2,644.76
4. Step 4: Simplify right side
   3,897.27x = 15,468,405.02
5. Step 5: Solve for x
   x = 15,468,405.02/3,897.27
6. Step 6: Final answer
   x = 3,969.04