Finding the Fourth Proportional to 2,627.81, 3,940.29 and 984.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,627.81 : 3,940.29 = 984.72 : x
2. Step 2: Convert to fraction form
   2,627.81/3,940.29 = 984.72/x
3. Step 3: Cross multiply
   2,627.81x = 3,940.29 × 984.72
4. Step 4: Simplify right side
   2,627.81x = 3,880,082.37
5. Step 5: Solve for x
   x = 3,880,082.37/2,627.81
6. Step 6: Final answer
   x = 1,476.55