Finding the Fourth Proportional to 2,648.42, 3,972.06 and 1,004.39

Step by Step Solution

1. Step 1: Write the proportion equation
   2,648.42 : 3,972.06 = 1,004.39 : x
2. Step 2: Convert to fraction form
   2,648.42/3,972.06 = 1,004.39/x
3. Step 3: Cross multiply
   2,648.42x = 3,972.06 × 1,004.39
4. Step 4: Simplify right side
   2,648.42x = 3,989,477.48
5. Step 5: Solve for x
   x = 3,989,477.48/2,648.42
6. Step 6: Final answer
   x = 1,506.36