Finding the Fourth Proportional to 5,273.69, 7,910.94 and 1,378.04

Step by Step Solution

1. Step 1: Write the proportion equation
   5,273.69 : 7,910.94 = 1,378.04 : x
2. Step 2: Convert to fraction form
   5,273.69/7,910.94 = 1,378.04/x
3. Step 3: Cross multiply
   5,273.69x = 7,910.94 × 1,378.04
4. Step 4: Simplify right side
   5,273.69x = 10,901,591.76
5. Step 5: Solve for x
   x = 10,901,591.76/5,273.69
6. Step 6: Final answer
   x = 2,067.17