Finding the Fourth Proportional to 2,644.88, 3,969.24 and 1,345.04

Step by Step Solution

1. Step 1: Write the proportion equation
   2,644.88 : 3,969.24 = 1,345.04 : x
2. Step 2: Convert to fraction form
   2,644.88/3,969.24 = 1,345.04/x
3. Step 3: Cross multiply
   2,644.88x = 3,969.24 × 1,345.04
4. Step 4: Simplify right side
   2,644.88x = 5,338,786.57
5. Step 5: Solve for x
   x = 5,338,786.57/2,644.88
6. Step 6: Final answer
   x = 2,018.54