Finding the Fourth Proportional to 2,572.88, 3,852.72 and 2,161.04

Step by Step Solution

1. Step 1: Write the proportion equation
   2,572.88 : 3,852.72 = 2,161.04 : x
2. Step 2: Convert to fraction form
   2,572.88/3,852.72 = 2,161.04/x
3. Step 3: Cross multiply
   2,572.88x = 3,852.72 × 2,161.04
4. Step 4: Simplify right side
   2,572.88x = 8,325,882.03
5. Step 5: Solve for x
   x = 8,325,882.03/2,572.88
6. Step 6: Final answer
   x = 3,236.02