Finding the Fourth Proportional to 2,222.01, 3,335.33 and 990.27

Step by Step Solution

1. Step 1: Write the proportion equation
   2,222.01 : 3,335.33 = 990.27 : x
2. Step 2: Convert to fraction form
   2,222.01/3,335.33 = 990.27/x
3. Step 3: Cross multiply
   2,222.01x = 3,335.33 × 990.27
4. Step 4: Simplify right side
   2,222.01x = 3,302,879.71
5. Step 5: Solve for x
   x = 3,302,879.71/2,222.01
6. Step 6: Final answer
   x = 1,486.44