Finding the Fourth Proportional to 2,092.82, 3,136.62 and 859.55

Step by Step Solution

1. Step 1: Write the proportion equation
   2,092.82 : 3,136.62 = 859.55 : x
2. Step 2: Convert to fraction form
   2,092.82/3,136.62 = 859.55/x
3. Step 3: Cross multiply
   2,092.82x = 3,136.62 × 859.55
4. Step 4: Simplify right side
   2,092.82x = 2,696,081.72
5. Step 5: Solve for x
   x = 2,696,081.72/2,092.82
6. Step 6: Final answer
   x = 1,288.25