Finding the Fourth Proportional to 2,273.54, 3,137.18 and 1,278.59

Step by Step Solution

1. Step 1: Write the proportion equation
   2,273.54 : 3,137.18 = 1,278.59 : x
2. Step 2: Convert to fraction form
   2,273.54/3,137.18 = 1,278.59/x
3. Step 3: Cross multiply
   2,273.54x = 3,137.18 × 1,278.59
4. Step 4: Simplify right side
   2,273.54x = 4,011,144.90
5. Step 5: Solve for x
   x = 4,011,144.90/2,273.54
6. Step 6: Final answer
   x = 1,764.28