Finding the Fourth Proportional to 3,648.42, 5,039.01 and 2,658.12

Step by Step Solution

1. Step 1: Write the proportion equation
   3,648.42 : 5,039.01 = 2,658.12 : x
2. Step 2: Convert to fraction form
   3,648.42/5,039.01 = 2,658.12/x
3. Step 3: Cross multiply
   3,648.42x = 5,039.01 × 2,658.12
4. Step 4: Simplify right side
   3,648.42x = 13,394,293.26
5. Step 5: Solve for x
   x = 13,394,293.26/3,648.42
6. Step 6: Final answer
   x = 3,671.26