Finding the Fourth Proportional to 3,190.89, 4,786.71 and 851.00

Step by Step Solution

1. Step 1: Write the proportion equation
   3,190.89 : 4,786.71 = 851.00 : x
2. Step 2: Convert to fraction form
   3,190.89/4,786.71 = 851.00/x
3. Step 3: Cross multiply
   3,190.89x = 4,786.71 × 851.00
4. Step 4: Simplify right side
   3,190.89x = 4,073,466.28
5. Step 5: Solve for x
   x = 4,073,466.28/3,190.89
6. Step 6: Final answer
   x = 1,276.59