Finding the Fourth Proportional to 2,355.20, 3,249.60 and 1,832.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,355.20 : 3,249.60 = 1,832.72 : x
2. Step 2: Convert to fraction form
   2,355.20/3,249.60 = 1,832.72/x
3. Step 3: Cross multiply
   2,355.20x = 3,249.60 × 1,832.72
4. Step 4: Simplify right side
   2,355.20x = 5,955,606.91
5. Step 5: Solve for x
   x = 5,955,606.91/2,355.20
6. Step 6: Final answer
   x = 2,528.71