Finding the Fourth Proportional to 2,740.73, 4,111.70 and 1,279.08

Step by Step Solution

1. Step 1: Write the proportion equation
   2,740.73 : 4,111.70 = 1,279.08 : x
2. Step 2: Convert to fraction form
   2,740.73/4,111.70 = 1,279.08/x
3. Step 3: Cross multiply
   2,740.73x = 4,111.70 × 1,279.08
4. Step 4: Simplify right side
   2,740.73x = 5,259,194.04
5. Step 5: Solve for x
   x = 5,259,194.04/2,740.73
6. Step 6: Final answer
   x = 1,918.91