Finding the Fourth Proportional to 2,218.02, 3,327.57 and 985.83

Step by Step Solution

1. Step 1: Write the proportion equation
   2,218.02 : 3,327.57 = 985.83 : x
2. Step 2: Convert to fraction form
   2,218.02/3,327.57 = 985.83/x
3. Step 3: Cross multiply
   2,218.02x = 3,327.57 × 985.83
4. Step 4: Simplify right side
   2,218.02x = 3,280,418.33
5. Step 5: Solve for x
   x = 3,280,418.33/2,218.02
6. Step 6: Final answer
   x = 1,478.99