Finding the Fourth Proportional to 2,736.78, 4,103.07 and 1,274.86

Step by Step Solution

1. Step 1: Write the proportion equation
   2,736.78 : 4,103.07 = 1,274.86 : x
2. Step 2: Convert to fraction form
   2,736.78/4,103.07 = 1,274.86/x
3. Step 3: Cross multiply
   2,736.78x = 4,103.07 × 1,274.86
4. Step 4: Simplify right side
   2,736.78x = 5,230,839.82
5. Step 5: Solve for x
   x = 5,230,839.82/2,736.78
6. Step 6: Final answer
   x = 1,911.31