Finding the Fourth Proportional to 5,148.48, 7,104.89 and 2,790.62

Step by Step Solution

1. Step 1: Write the proportion equation
   5,148.48 : 7,104.89 = 2,790.62 : x
2. Step 2: Convert to fraction form
   5,148.48/7,104.89 = 2,790.62/x
3. Step 3: Cross multiply
   5,148.48x = 7,104.89 × 2,790.62
4. Step 4: Simplify right side
   5,148.48x = 19,826,998.65
5. Step 5: Solve for x
   x = 19,826,998.65/5,148.48
6. Step 6: Final answer
   x = 3,851.04