Finding the Fourth Proportional to 2,644.60, 3,968.49 and 1,002.53

Step by Step Solution

1. Step 1: Write the proportion equation
   2,644.60 : 3,968.49 = 1,002.53 : x
2. Step 2: Convert to fraction form
   2,644.60/3,968.49 = 1,002.53/x
3. Step 3: Cross multiply
   2,644.60x = 3,968.49 × 1,002.53
4. Step 4: Simplify right side
   2,644.60x = 3,978,521.64
5. Step 5: Solve for x
   x = 3,978,521.64/2,644.60
6. Step 6: Final answer
   x = 1,504.39