Finding the Fourth Proportional to 2,729.43, 4,091.72 and 1,267.79

Step by Step Solution

1. Step 1: Write the proportion equation
   2,729.43 : 4,091.72 = 1,267.79 : x
2. Step 2: Convert to fraction form
   2,729.43/4,091.72 = 1,267.79/x
3. Step 3: Cross multiply
   2,729.43x = 4,091.72 × 1,267.79
4. Step 4: Simplify right side
   2,729.43x = 5,187,414.90
5. Step 5: Solve for x
   x = 5,187,414.90/2,729.43
6. Step 6: Final answer
   x = 1,900.55