Finding the Fourth Proportional to 1,494.89, 2,063.07 and 905.42

Step by Step Solution

1. Step 1: Write the proportion equation
   1,494.89 : 2,063.07 = 905.42 : x
2. Step 2: Convert to fraction form
   1,494.89/2,063.07 = 905.42/x
3. Step 3: Cross multiply
   1,494.89x = 2,063.07 × 905.42
4. Step 4: Simplify right side
   1,494.89x = 1,867,934.52
5. Step 5: Solve for x
   x = 1,867,934.52/1,494.89
6. Step 6: Final answer
   x = 1,249.55