Finding the Fourth Proportional to 2,680.28, 4,019.43 and 924.83

Step by Step Solution

1. Step 1: Write the proportion equation
   2,680.28 : 4,019.43 = 924.83 : x
2. Step 2: Convert to fraction form
   2,680.28/4,019.43 = 924.83/x
3. Step 3: Cross multiply
   2,680.28x = 4,019.43 × 924.83
4. Step 4: Simplify right side
   2,680.28x = 3,717,299.50
5. Step 5: Solve for x
   x = 3,717,299.50/2,680.28
6. Step 6: Final answer
   x = 1,386.91