Finding the Fourth Proportional to 2,399.88, 3,596.52 and 2,160.12

Step by Step Solution

1. Step 1: Write the proportion equation
   2,399.88 : 3,596.52 = 2,160.12 : x
2. Step 2: Convert to fraction form
   2,399.88/3,596.52 = 2,160.12/x
3. Step 3: Cross multiply
   2,399.88x = 3,596.52 × 2,160.12
4. Step 4: Simplify right side
   2,399.88x = 7,768,914.78
5. Step 5: Solve for x
   x = 7,768,914.78/2,399.88
6. Step 6: Final answer
   x = 3,237.21