Finding the Fourth Proportional to 2,647.32, 3,972.56 and 1,004.08

Step by Step Solution

1. Step 1: Write the proportion equation
   2,647.32 : 3,972.56 = 1,004.08 : x
2. Step 2: Convert to fraction form
   2,647.32/3,972.56 = 1,004.08/x
3. Step 3: Cross multiply
   2,647.32x = 3,972.56 × 1,004.08
4. Step 4: Simplify right side
   2,647.32x = 3,988,768.04
5. Step 5: Solve for x
   x = 3,988,768.04/2,647.32
6. Step 6: Final answer
   x = 1,506.72