Finding the Fourth Proportional to 2,627.40, 3,940.38 and 983.82

Step by Step Solution

1. Step 1: Write the proportion equation
   2,627.40 : 3,940.38 = 983.82 : x
2. Step 2: Convert to fraction form
   2,627.40/3,940.38 = 983.82/x
3. Step 3: Cross multiply
   2,627.40x = 3,940.38 × 983.82
4. Step 4: Simplify right side
   2,627.40x = 3,876,624.65
5. Step 5: Solve for x
   x = 3,876,624.65/2,627.40
6. Step 6: Final answer
   x = 1,475.46