Finding the Fourth Proportional to 4,849.60, 7,273.52 and 1,386

Step by Step Solution

1. Step 1: Write the proportion equation
   4,849.60 : 7,273.52 = 1,386 : x
2. Step 2: Convert to fraction form
   4,849.60/7,273.52 = 1,386/x
3. Step 3: Cross multiply
   4,849.60x = 7,273.52 × 1,386
4. Step 4: Simplify right side
   4,849.60x = 10,081,098.72
5. Step 5: Solve for x
   x = 10,081,098.72/4,849.60
6. Step 6: Final answer
   x = 2,078.75