Finding the Fourth Proportional to 2,802.50, 4,204.67 and 854.71

Step by Step Solution

1. Step 1: Write the proportion equation
   2,802.50 : 4,204.67 = 854.71 : x
2. Step 2: Convert to fraction form
   2,802.50/4,204.67 = 854.71/x
3. Step 3: Cross multiply
   2,802.50x = 4,204.67 × 854.71
4. Step 4: Simplify right side
   2,802.50x = 3,593,773.50
5. Step 5: Solve for x
   x = 3,593,773.50/2,802.50
6. Step 6: Final answer
   x = 1,282.35