Finding the Fourth Proportional to 2,802.61, 4,204.59 and 854.69

Step by Step Solution

1. Step 1: Write the proportion equation
   2,802.61 : 4,204.59 = 854.69 : x
2. Step 2: Convert to fraction form
   2,802.61/4,204.59 = 854.69/x
3. Step 3: Cross multiply
   2,802.61x = 4,204.59 × 854.69
4. Step 4: Simplify right side
   2,802.61x = 3,593,616.75
5. Step 5: Solve for x
   x = 3,593,616.75/2,802.61
6. Step 6: Final answer
   x = 1,282.24