Finding the Fourth Proportional to 2,076.72, 3,125.16 and 1,872.24

Step by Step Solution

1. Step 1: Write the proportion equation
   2,076.72 : 3,125.16 = 1,872.24 : x
2. Step 2: Convert to fraction form
   2,076.72/3,125.16 = 1,872.24/x
3. Step 3: Cross multiply
   2,076.72x = 3,125.16 × 1,872.24
4. Step 4: Simplify right side
   2,076.72x = 5,851,049.56
5. Step 5: Solve for x
   x = 5,851,049.56/2,076.72
6. Step 6: Final answer
   x = 2,817.45