Finding the Fourth Proportional to 2,721.78, 3,756.06 and 1,479.78

Step by Step Solution

1. Step 1: Write the proportion equation
   2,721.78 : 3,756.06 = 1,479.78 : x
2. Step 2: Convert to fraction form
   2,721.78/3,756.06 = 1,479.78/x
3. Step 3: Cross multiply
   2,721.78x = 3,756.06 × 1,479.78
4. Step 4: Simplify right side
   2,721.78x = 5,558,142.47
5. Step 5: Solve for x
   x = 5,558,142.47/2,721.78
6. Step 6: Final answer
   x = 2,042.10