Finding the Fourth Proportional to 3,384.72, 5,078.52 and 1,628.88

Step by Step Solution

1. Step 1: Write the proportion equation
   3,384.72 : 5,078.52 = 1,628.88 : x
2. Step 2: Convert to fraction form
   3,384.72/5,078.52 = 1,628.88/x
3. Step 3: Cross multiply
   3,384.72x = 5,078.52 × 1,628.88
4. Step 4: Simplify right side
   3,384.72x = 8,272,299.66
5. Step 5: Solve for x
   x = 8,272,299.66/3,384.72
6. Step 6: Final answer
   x = 2,444.01