Finding the Fourth Proportional to 1,647.74, 2,273.59 and 984.55

Step by Step Solution

1. Step 1: Write the proportion equation
   1,647.74 : 2,273.59 = 984.55 : x
2. Step 2: Convert to fraction form
   1,647.74/2,273.59 = 984.55/x
3. Step 3: Cross multiply
   1,647.74x = 2,273.59 × 984.55
4. Step 4: Simplify right side
   1,647.74x = 2,238,463.03
5. Step 5: Solve for x
   x = 2,238,463.03/1,647.74
6. Step 6: Final answer
   x = 1,358.51