Finding the Fourth Proportional to 4,984.71, 7,467.49 and 2,786.78

Step by Step Solution

1. Step 1: Write the proportion equation
   4,984.71 : 7,467.49 = 2,786.78 : x
2. Step 2: Convert to fraction form
   4,984.71/7,467.49 = 2,786.78/x
3. Step 3: Cross multiply
   4,984.71x = 7,467.49 × 2,786.78
4. Step 4: Simplify right side
   4,984.71x = 20,810,251.78
5. Step 5: Solve for x
   x = 20,810,251.78/4,984.71
6. Step 6: Final answer
   x = 4,174.82