Finding the Fourth Proportional to 2,222.01, 3,333.42 and 989.42

Step by Step Solution

1. Step 1: Write the proportion equation
   2,222.01 : 3,333.42 = 989.42 : x
2. Step 2: Convert to fraction form
   2,222.01/3,333.42 = 989.42/x
3. Step 3: Cross multiply
   2,222.01x = 3,333.42 × 989.42
4. Step 4: Simplify right side
   2,222.01x = 3,298,135.75
5. Step 5: Solve for x
   x = 3,298,135.75/2,222.01
6. Step 6: Final answer
   x = 1,484.30