Finding the Fourth Proportional to 3,384.50, 5,078.27 and 2,151.59

Step by Step Solution

1. Step 1: Write the proportion equation
   3,384.50 : 5,078.27 = 2,151.59 : x
2. Step 2: Convert to fraction form
   3,384.50/5,078.27 = 2,151.59/x
3. Step 3: Cross multiply
   3,384.50x = 5,078.27 × 2,151.59
4. Step 4: Simplify right side
   3,384.50x = 10,926,354.95
5. Step 5: Solve for x
   x = 10,926,354.95/3,384.50
6. Step 6: Final answer
   x = 3,228.35