Finding the Fourth Proportional to 3,980.92, 5,970.67 and 1,789.27

Step by Step Solution

1. Step 1: Write the proportion equation
   3,980.92 : 5,970.67 = 1,789.27 : x
2. Step 2: Convert to fraction form
   3,980.92/5,970.67 = 1,789.27/x
3. Step 3: Cross multiply
   3,980.92x = 5,970.67 × 1,789.27
4. Step 4: Simplify right side
   3,980.92x = 10,683,140.71
5. Step 5: Solve for x
   x = 10,683,140.71/3,980.92
6. Step 6: Final answer
   x = 2,683.59