Finding the Fourth Proportional to 1,648.05, 2,274.25 and 984.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,648.05 : 2,274.25 = 984.50 : x
2. Step 2: Convert to fraction form
   1,648.05/2,274.25 = 984.50/x
3. Step 3: Cross multiply
   1,648.05x = 2,274.25 × 984.50
4. Step 4: Simplify right side
   1,648.05x = 2,239,002.35
5. Step 5: Solve for x
   x = 2,239,002.35/1,648.05
6. Step 6: Final answer
   x = 1,358.58