Finding the Fourth Proportional to 3,786.89, 5,680.52 and 1,447.10

Step by Step Solution

1. Step 1: Write the proportion equation
   3,786.89 : 5,680.52 = 1,447.10 : x
2. Step 2: Convert to fraction form
   3,786.89/5,680.52 = 1,447.10/x
3. Step 3: Cross multiply
   3,786.89x = 5,680.52 × 1,447.10
4. Step 4: Simplify right side
   3,786.89x = 8,220,255.71
5. Step 5: Solve for x
   x = 8,220,255.71/3,786.89
6. Step 6: Final answer
   x = 2,170.71