Finding the Fourth Proportional to 2,644.78, 3,966.94 and 1,001.34

Step by Step Solution

1. Step 1: Write the proportion equation
   2,644.78 : 3,966.94 = 1,001.34 : x
2. Step 2: Convert to fraction form
   2,644.78/3,966.94 = 1,001.34/x
3. Step 3: Cross multiply
   2,644.78x = 3,966.94 × 1,001.34
4. Step 4: Simplify right side
   2,644.78x = 3,972,253.20
5. Step 5: Solve for x
   x = 3,972,253.20/2,644.78
6. Step 6: Final answer
   x = 1,501.92