Finding the Fourth Proportional to 3,711.70, 5,122.83 and 2,118.34

Step by Step Solution

1. Step 1: Write the proportion equation
   3,711.70 : 5,122.83 = 2,118.34 : x
2. Step 2: Convert to fraction form
   3,711.70/5,122.83 = 2,118.34/x
3. Step 3: Cross multiply
   3,711.70x = 5,122.83 × 2,118.34
4. Step 4: Simplify right side
   3,711.70x = 10,851,895.70
5. Step 5: Solve for x
   x = 10,851,895.70/3,711.70
6. Step 6: Final answer
   x = 2,923.70