Finding the Fourth Proportional to 2,852.55, 3,938.38 and 2,553.29

Step by Step Solution

1. Step 1: Write the proportion equation
   2,852.55 : 3,938.38 = 2,553.29 : x
2. Step 2: Convert to fraction form
   2,852.55/3,938.38 = 2,553.29/x
3. Step 3: Cross multiply
   2,852.55x = 3,938.38 × 2,553.29
4. Step 4: Simplify right side
   2,852.55x = 10,055,826.27
5. Step 5: Solve for x
   x = 10,055,826.27/2,852.55
6. Step 6: Final answer
   x = 3,525.21