Finding the Fourth Proportional to 2,982.04, 4,111.20 and 2,560.57

Step by Step Solution

1. Step 1: Write the proportion equation
   2,982.04 : 4,111.20 = 2,560.57 : x
2. Step 2: Convert to fraction form
   2,982.04/4,111.20 = 2,560.57/x
3. Step 3: Cross multiply
   2,982.04x = 4,111.20 × 2,560.57
4. Step 4: Simplify right side
   2,982.04x = 10,527,015.38
5. Step 5: Solve for x
   x = 10,527,015.38/2,982.04
6. Step 6: Final answer
   x = 3,530.14