Finding the Fourth Proportional to 2,644.35, 3,963.28 and 1,486.59

Step by Step Solution

1. Step 1: Write the proportion equation
   2,644.35 : 3,963.28 = 1,486.59 : x
2. Step 2: Convert to fraction form
   2,644.35/3,963.28 = 1,486.59/x
3. Step 3: Cross multiply
   2,644.35x = 3,963.28 × 1,486.59
4. Step 4: Simplify right side
   2,644.35x = 5,891,772.42
5. Step 5: Solve for x
   x = 5,891,772.42/2,644.35
6. Step 6: Final answer
   x = 2,228.06