Finding the Fourth Proportional to 2,066.77, 3,100.83 and 833.55

Step by Step Solution

1. Step 1: Write the proportion equation
   2,066.77 : 3,100.83 = 833.55 : x
2. Step 2: Convert to fraction form
   2,066.77/3,100.83 = 833.55/x
3. Step 3: Cross multiply
   2,066.77x = 3,100.83 × 833.55
4. Step 4: Simplify right side
   2,066.77x = 2,584,696.85
5. Step 5: Solve for x
   x = 2,584,696.85/2,066.77
6. Step 6: Final answer
   x = 1,250.60