Finding the Fourth Proportional to 2,850.56, 4,276.02 and 1,206.89

Step by Step Solution

1. Step 1: Write the proportion equation
   2,850.56 : 4,276.02 = 1,206.89 : x
2. Step 2: Convert to fraction form
   2,850.56/4,276.02 = 1,206.89/x
3. Step 3: Cross multiply
   2,850.56x = 4,276.02 × 1,206.89
4. Step 4: Simplify right side
   2,850.56x = 5,160,685.78
5. Step 5: Solve for x
   x = 5,160,685.78/2,850.56
6. Step 6: Final answer
   x = 1,810.41