Finding the Fourth Proportional to 2,834.06, 4,251.45 and 985.31

Step by Step Solution

1. Step 1: Write the proportion equation
   2,834.06 : 4,251.45 = 985.31 : x
2. Step 2: Convert to fraction form
   2,834.06/4,251.45 = 985.31/x
3. Step 3: Cross multiply
   2,834.06x = 4,251.45 × 985.31
4. Step 4: Simplify right side
   2,834.06x = 4,188,994.58
5. Step 5: Solve for x
   x = 4,188,994.58/2,834.06
6. Step 6: Final answer
   x = 1,478.09