Finding the Fourth Proportional to 2,222.96, 3,333.50 and 989.52

Step by Step Solution

1. Step 1: Write the proportion equation
   2,222.96 : 3,333.50 = 989.52 : x
2. Step 2: Convert to fraction form
   2,222.96/3,333.50 = 989.52/x
3. Step 3: Cross multiply
   2,222.96x = 3,333.50 × 989.52
4. Step 4: Simplify right side
   2,222.96x = 3,298,564.92
5. Step 5: Solve for x
   x = 3,298,564.92/2,222.96
6. Step 6: Final answer
   x = 1,483.86