Finding the Fourth Proportional to 2,757.82, 4,139.47 and 1,298

Step by Step Solution

1. Step 1: Write the proportion equation
   2,757.82 : 4,139.47 = 1,298 : x
2. Step 2: Convert to fraction form
   2,757.82/4,139.47 = 1,298/x
3. Step 3: Cross multiply
   2,757.82x = 4,139.47 × 1,298
4. Step 4: Simplify right side
   2,757.82x = 5,373,032.06
5. Step 5: Solve for x
   x = 5,373,032.06/2,757.82
6. Step 6: Final answer
   x = 1,948.29