Finding the Fourth Proportional to 2,980.55, 4,103.81 and 2,531.48

Step by Step Solution

1. Step 1: Write the proportion equation
   2,980.55 : 4,103.81 = 2,531.48 : x
2. Step 2: Convert to fraction form
   2,980.55/4,103.81 = 2,531.48/x
3. Step 3: Cross multiply
   2,980.55x = 4,103.81 × 2,531.48
4. Step 4: Simplify right side
   2,980.55x = 10,388,712.94
5. Step 5: Solve for x
   x = 10,388,712.94/2,980.55
6. Step 6: Final answer
   x = 3,485.50