Finding the Fourth Proportional to 3,784.62, 5,679.72 and 2,144.37

Step by Step Solution

1. Step 1: Write the proportion equation
   3,784.62 : 5,679.72 = 2,144.37 : x
2. Step 2: Convert to fraction form
   3,784.62/5,679.72 = 2,144.37/x
3. Step 3: Cross multiply
   3,784.62x = 5,679.72 × 2,144.37
4. Step 4: Simplify right side
   3,784.62x = 12,179,442.48
5. Step 5: Solve for x
   x = 12,179,442.48/3,784.62
6. Step 6: Final answer
   x = 3,218.14