Finding the Fourth Proportional to 1,644.04, 2,268.72 and 945.28

Step by Step Solution

1. Step 1: Write the proportion equation
   1,644.04 : 2,268.72 = 945.28 : x
2. Step 2: Convert to fraction form
   1,644.04/2,268.72 = 945.28/x
3. Step 3: Cross multiply
   1,644.04x = 2,268.72 × 945.28
4. Step 4: Simplify right side
   1,644.04x = 2,144,575.64
5. Step 5: Solve for x
   x = 2,144,575.64/1,644.04
6. Step 6: Final answer
   x = 1,304.45