Finding the Fourth Proportional to 2,680.32, 3,704.32 and 2,019.20

Step by Step Solution

1. Step 1: Write the proportion equation
   2,680.32 : 3,704.32 = 2,019.20 : x
2. Step 2: Convert to fraction form
   2,680.32/3,704.32 = 2,019.20/x
3. Step 3: Cross multiply
   2,680.32x = 3,704.32 × 2,019.20
4. Step 4: Simplify right side
   2,680.32x = 7,479,762.94
5. Step 5: Solve for x
   x = 7,479,762.94/2,680.32
6. Step 6: Final answer
   x = 2,790.62