Finding the Fourth Proportional to 3,806.37, 5,701.86 and 2,980.71

Step by Step Solution

1. Step 1: Write the proportion equation
   3,806.37 : 5,701.86 = 2,980.71 : x
2. Step 2: Convert to fraction form
   3,806.37/5,701.86 = 2,980.71/x
3. Step 3: Cross multiply
   3,806.37x = 5,701.86 × 2,980.71
4. Step 4: Simplify right side
   3,806.37x = 16,995,591.12
5. Step 5: Solve for x
   x = 16,995,591.12/3,806.37
6. Step 6: Final answer
   x = 4,465.04