Finding the Fourth Proportional to 3,612.72, 4,985.37 and 2,040.54

Step by Step Solution

1. Step 1: Write the proportion equation
   3,612.72 : 4,985.37 = 2,040.54 : x
2. Step 2: Convert to fraction form
   3,612.72/4,985.37 = 2,040.54/x
3. Step 3: Cross multiply
   3,612.72x = 4,985.37 × 2,040.54
4. Step 4: Simplify right side
   3,612.72x = 10,172,846.90
5. Step 5: Solve for x
   x = 10,172,846.90/3,612.72
6. Step 6: Final answer
   x = 2,815.84