Finding the Fourth Proportional to 3,966.76, 5,945.82 and 2,665

Step by Step Solution

1. Step 1: Write the proportion equation
   3,966.76 : 5,945.82 = 2,665 : x
2. Step 2: Convert to fraction form
   3,966.76/5,945.82 = 2,665/x
3. Step 3: Cross multiply
   3,966.76x = 5,945.82 × 2,665
4. Step 4: Simplify right side
   3,966.76x = 15,845,610.30
5. Step 5: Solve for x
   x = 15,845,610.30/3,966.76
6. Step 6: Final answer
   x = 3,994.60