Finding the Fourth Proportional to 2,610.45, 3,912.21 and 965.48

Step by Step Solution

1. Step 1: Write the proportion equation
   2,610.45 : 3,912.21 = 965.48 : x
2. Step 2: Convert to fraction form
   2,610.45/3,912.21 = 965.48/x
3. Step 3: Cross multiply
   2,610.45x = 3,912.21 × 965.48
4. Step 4: Simplify right side
   2,610.45x = 3,777,160.51
5. Step 5: Solve for x
   x = 3,777,160.51/2,610.45
6. Step 6: Final answer
   x = 1,446.94