Finding the Fourth Proportional to 2,086.98, 3,133.34 and 1,857.34

Step by Step Solution

1. Step 1: Write the proportion equation
   2,086.98 : 3,133.34 = 1,857.34 : x
2. Step 2: Convert to fraction form
   2,086.98/3,133.34 = 1,857.34/x
3. Step 3: Cross multiply
   2,086.98x = 3,133.34 × 1,857.34
4. Step 4: Simplify right side
   2,086.98x = 5,819,677.72
5. Step 5: Solve for x
   x = 5,819,677.72/2,086.98
6. Step 6: Final answer
   x = 2,788.56