Finding the Fourth Proportional to 2,628.01, 3,940.80 and 984.52

Step by Step Solution

1. Step 1: Write the proportion equation
   2,628.01 : 3,940.80 = 984.52 : x
2. Step 2: Convert to fraction form
   2,628.01/3,940.80 = 984.52/x
3. Step 3: Cross multiply
   2,628.01x = 3,940.80 × 984.52
4. Step 4: Simplify right side
   2,628.01x = 3,879,796.42
5. Step 5: Solve for x
   x = 3,879,796.42/2,628.01
6. Step 6: Final answer
   x = 1,476.32