Finding the Fourth Proportional to 3,818.79, 5,269.89 and 2,140.27

Step by Step Solution

1. Step 1: Write the proportion equation
   3,818.79 : 5,269.89 = 2,140.27 : x
2. Step 2: Convert to fraction form
   3,818.79/5,269.89 = 2,140.27/x
3. Step 3: Cross multiply
   3,818.79x = 5,269.89 × 2,140.27
4. Step 4: Simplify right side
   3,818.79x = 11,278,982.32
5. Step 5: Solve for x
   x = 11,278,982.32/3,818.79
6. Step 6: Final answer
   x = 2,953.55