Finding the Fourth Proportional to 2,648.48, 3,647.52 and 2,591.06

Step by Step Solution

1. Step 1: Write the proportion equation
   2,648.48 : 3,647.52 = 2,591.06 : x
2. Step 2: Convert to fraction form
   2,648.48/3,647.52 = 2,591.06/x
3. Step 3: Cross multiply
   2,648.48x = 3,647.52 × 2,591.06
4. Step 4: Simplify right side
   2,648.48x = 9,450,924.93
5. Step 5: Solve for x
   x = 9,450,924.93/2,648.48
6. Step 6: Final answer
   x = 3,568.44