Finding the Fourth Proportional to 2,411.53, 3,617.34 and 851.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,411.53 : 3,617.34 = 851.50 : x
2. Step 2: Convert to fraction form
   2,411.53/3,617.34 = 851.50/x
3. Step 3: Cross multiply
   2,411.53x = 3,617.34 × 851.50
4. Step 4: Simplify right side
   2,411.53x = 3,080,146.92
5. Step 5: Solve for x
   x = 3,080,146.92/2,411.53
6. Step 6: Final answer
   x = 1,277.26