Finding the Fourth Proportional to 2,081.86, 3,122.03 and 848.60

Step by Step Solution

1. Step 1: Write the proportion equation
   2,081.86 : 3,122.03 = 848.60 : x
2. Step 2: Convert to fraction form
   2,081.86/3,122.03 = 848.60/x
3. Step 3: Cross multiply
   2,081.86x = 3,122.03 × 848.60
4. Step 4: Simplify right side
   2,081.86x = 2,649,357.78
5. Step 5: Solve for x
   x = 2,649,357.78/2,081.86
6. Step 6: Final answer
   x = 1,272.59