Finding the Fourth Proportional to 5,148.54, 7,105.37 and 2,880.07

Step by Step Solution

1. Step 1: Write the proportion equation
   5,148.54 : 7,105.37 = 2,880.07 : x
2. Step 2: Convert to fraction form
   5,148.54/7,105.37 = 2,880.07/x
3. Step 3: Cross multiply
   5,148.54x = 7,105.37 × 2,880.07
4. Step 4: Simplify right side
   5,148.54x = 20,463,962.98
5. Step 5: Solve for x
   x = 20,463,962.98/5,148.54
6. Step 6: Final answer
   x = 3,974.71