Finding the Fourth Proportional to 2,682.72, 3,705.96 and 2,553.12

Step by Step Solution

1. Step 1: Write the proportion equation
   2,682.72 : 3,705.96 = 2,553.12 : x
2. Step 2: Convert to fraction form
   2,682.72/3,705.96 = 2,553.12/x
3. Step 3: Cross multiply
   2,682.72x = 3,705.96 × 2,553.12
4. Step 4: Simplify right side
   2,682.72x = 9,461,760.60
5. Step 5: Solve for x
   x = 9,461,760.60/2,682.72
6. Step 6: Final answer
   x = 3,526.93