Finding the Fourth Proportional to 2,138.52, 3,208.86 and 984.04

Step by Step Solution

1. Step 1: Write the proportion equation
   2,138.52 : 3,208.86 = 984.04 : x
2. Step 2: Convert to fraction form
   2,138.52/3,208.86 = 984.04/x
3. Step 3: Cross multiply
   2,138.52x = 3,208.86 × 984.04
4. Step 4: Simplify right side
   2,138.52x = 3,157,646.59
5. Step 5: Solve for x
   x = 3,157,646.59/2,138.52
6. Step 6: Final answer
   x = 1,476.56