Finding the Fourth Proportional to 3,386.72, 5,081.52 and 1,630.88

Step by Step Solution

1. Step 1: Write the proportion equation
   3,386.72 : 5,081.52 = 1,630.88 : x
2. Step 2: Convert to fraction form
   3,386.72/5,081.52 = 1,630.88/x
3. Step 3: Cross multiply
   3,386.72x = 5,081.52 × 1,630.88
4. Step 4: Simplify right side
   3,386.72x = 8,287,349.34
5. Step 5: Solve for x
   x = 8,287,349.34/3,386.72
6. Step 6: Final answer
   x = 2,447.01