Finding the Fourth Proportional to 3,882.42, 5,818.39 and 2,784.38

Step by Step Solution

1. Step 1: Write the proportion equation
   3,882.42 : 5,818.39 = 2,784.38 : x
2. Step 2: Convert to fraction form
   3,882.42/5,818.39 = 2,784.38/x
3. Step 3: Cross multiply
   3,882.42x = 5,818.39 × 2,784.38
4. Step 4: Simplify right side
   3,882.42x = 16,200,572.70
5. Step 5: Solve for x
   x = 16,200,572.70/3,882.42
6. Step 6: Final answer
   x = 4,172.80