Finding the Fourth Proportional to 2,205.50, 3,043.71 and 1,274.30

Step by Step Solution

1. Step 1: Write the proportion equation
   2,205.50 : 3,043.71 = 1,274.30 : x
2. Step 2: Convert to fraction form
   2,205.50/3,043.71 = 1,274.30/x
3. Step 3: Cross multiply
   2,205.50x = 3,043.71 × 1,274.30
4. Step 4: Simplify right side
   2,205.50x = 3,878,599.65
5. Step 5: Solve for x
   x = 3,878,599.65/2,205.50
6. Step 6: Final answer
   x = 1,758.60