Finding the Fourth Proportional to 2,517.42, 3,776.35 and 851.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,517.42 : 3,776.35 = 851.50 : x
2. Step 2: Convert to fraction form
   2,517.42/3,776.35 = 851.50/x
3. Step 3: Cross multiply
   2,517.42x = 3,776.35 × 851.50
4. Step 4: Simplify right side
   2,517.42x = 3,215,562.03
5. Step 5: Solve for x
   x = 3,215,562.03/2,517.42
6. Step 6: Final answer
   x = 1,277.32