Finding the Fourth Proportional to 2,648.32, 3,971.52 and 1,004.02

Step by Step Solution

1. Step 1: Write the proportion equation
   2,648.32 : 3,971.52 = 1,004.02 : x
2. Step 2: Convert to fraction form
   2,648.32/3,971.52 = 1,004.02/x
3. Step 3: Cross multiply
   2,648.32x = 3,971.52 × 1,004.02
4. Step 4: Simplify right side
   2,648.32x = 3,987,485.51
5. Step 5: Solve for x
   x = 3,987,485.51/2,648.32
6. Step 6: Final answer
   x = 1,505.67