Finding the Fourth Proportional to 2,086.70, 2,873.09 and 1,771.34

Step by Step Solution

1. Step 1: Write the proportion equation
   2,086.70 : 2,873.09 = 1,771.34 : x
2. Step 2: Convert to fraction form
   2,086.70/2,873.09 = 1,771.34/x
3. Step 3: Cross multiply
   2,086.70x = 2,873.09 × 1,771.34
4. Step 4: Simplify right side
   2,086.70x = 5,089,230.85
5. Step 5: Solve for x
   x = 5,089,230.85/2,086.70
6. Step 6: Final answer
   x = 2,438.89