Finding the Fourth Proportional to 2,607.39, 3,910.08 and 851.94

Step by Step Solution

1. Step 1: Write the proportion equation
   2,607.39 : 3,910.08 = 851.94 : x
2. Step 2: Convert to fraction form
   2,607.39/3,910.08 = 851.94/x
3. Step 3: Cross multiply
   2,607.39x = 3,910.08 × 851.94
4. Step 4: Simplify right side
   2,607.39x = 3,331,153.56
5. Step 5: Solve for x
   x = 3,331,153.56/2,607.39
6. Step 6: Final answer
   x = 1,277.58