Finding the Fourth Proportional to 2,700.50, 4,050.92 and 851.67

Step by Step Solution

1. Step 1: Write the proportion equation
   2,700.50 : 4,050.92 = 851.67 : x
2. Step 2: Convert to fraction form
   2,700.50/4,050.92 = 851.67/x
3. Step 3: Cross multiply
   2,700.50x = 4,050.92 × 851.67
4. Step 4: Simplify right side
   2,700.50x = 3,450,042.78
5. Step 5: Solve for x
   x = 3,450,042.78/2,700.50
6. Step 6: Final answer
   x = 1,277.56