Finding the Fourth Proportional to 999.96, 1,499.94 and 269.61

Step by Step Solution

1. Step 1: Write the proportion equation
   999.96 : 1,499.94 = 269.61 : x
2. Step 2: Convert to fraction form
   999.96/1,499.94 = 269.61/x
3. Step 3: Cross multiply
   999.96x = 1,499.94 × 269.61
4. Step 4: Simplify right side
   999.96x = 404,398.82
5. Step 5: Solve for x
   x = 404,398.82/999.96
6. Step 6: Final answer
   x = 404.42