Finding the Fourth Proportional to 1,872.72, 2,820.24 and 1,632.24

Step by Step Solution

1. Step 1: Write the proportion equation
   1,872.72 : 2,820.24 = 1,632.24 : x
2. Step 2: Convert to fraction form
   1,872.72/2,820.24 = 1,632.24/x
3. Step 3: Cross multiply
   1,872.72x = 2,820.24 × 1,632.24
4. Step 4: Simplify right side
   1,872.72x = 4,603,308.54
5. Step 5: Solve for x
   x = 4,603,308.54/1,872.72
6. Step 6: Final answer
   x = 2,458.09