Finding the Fourth Proportional to 2,494.76, 3,742.23 and 851.31

Step by Step Solution

1. Step 1: Write the proportion equation
   2,494.76 : 3,742.23 = 851.31 : x
2. Step 2: Convert to fraction form
   2,494.76/3,742.23 = 851.31/x
3. Step 3: Cross multiply
   2,494.76x = 3,742.23 × 851.31
4. Step 4: Simplify right side
   2,494.76x = 3,185,797.82
5. Step 5: Solve for x
   x = 3,185,797.82/2,494.76
6. Step 6: Final answer
   x = 1,277.00