Finding the Fourth Proportional to 2,076.77, 3,116.02 and 843.86

Step by Step Solution

1. Step 1: Write the proportion equation
   2,076.77 : 3,116.02 = 843.86 : x
2. Step 2: Convert to fraction form
   2,076.77/3,116.02 = 843.86/x
3. Step 3: Cross multiply
   2,076.77x = 3,116.02 × 843.86
4. Step 4: Simplify right side
   2,076.77x = 2,629,484.64
5. Step 5: Solve for x
   x = 2,629,484.64/2,076.77
6. Step 6: Final answer
   x = 1,266.14