Finding the Fourth Proportional to 2,648.88, 3,971.16 and 1,004.49

Step by Step Solution

1. Step 1: Write the proportion equation
   2,648.88 : 3,971.16 = 1,004.49 : x
2. Step 2: Convert to fraction form
   2,648.88/3,971.16 = 1,004.49/x
3. Step 3: Cross multiply
   2,648.88x = 3,971.16 × 1,004.49
4. Step 4: Simplify right side
   2,648.88x = 3,988,990.51
5. Step 5: Solve for x
   x = 3,988,990.51/2,648.88
6. Step 6: Final answer
   x = 1,505.92