Finding the Fourth Proportional to 3,635.31, 5,016.74 and 1,979.31

Step by Step Solution

1. Step 1: Write the proportion equation
   3,635.31 : 5,016.74 = 1,979.31 : x
2. Step 2: Convert to fraction form
   3,635.31/5,016.74 = 1,979.31/x
3. Step 3: Cross multiply
   3,635.31x = 5,016.74 × 1,979.31
4. Step 4: Simplify right side
   3,635.31x = 9,929,683.65
5. Step 5: Solve for x
   x = 9,929,683.65/3,635.31
6. Step 6: Final answer
   x = 2,731.45