Finding the Fourth Proportional to 2,205.75, 3,044.30 and 1,274.79

Step by Step Solution

1. Step 1: Write the proportion equation
   2,205.75 : 3,044.30 = 1,274.79 : x
2. Step 2: Convert to fraction form
   2,205.75/3,044.30 = 1,274.79/x
3. Step 3: Cross multiply
   2,205.75x = 3,044.30 × 1,274.79
4. Step 4: Simplify right side
   2,205.75x = 3,880,836.82
5. Step 5: Solve for x
   x = 3,880,836.82/2,205.75
6. Step 6: Final answer
   x = 1,759.42