Finding the Fourth Proportional to 3,612.72, 4,985.56 and 2,040.82

Step by Step Solution

1. Step 1: Write the proportion equation
   3,612.72 : 4,985.56 = 2,040.82 : x
2. Step 2: Convert to fraction form
   3,612.72/4,985.56 = 2,040.82/x
3. Step 3: Cross multiply
   3,612.72x = 4,985.56 × 2,040.82
4. Step 4: Simplify right side
   3,612.72x = 10,174,630.56
5. Step 5: Solve for x
   x = 10,174,630.56/3,612.72
6. Step 6: Final answer
   x = 2,816.34