Finding the Fourth Proportional to 1,571.98, 2,169.06 and 908.83

Step by Step Solution

1. Step 1: Write the proportion equation
   1,571.98 : 2,169.06 = 908.83 : x
2. Step 2: Convert to fraction form
   1,571.98/2,169.06 = 908.83/x
3. Step 3: Cross multiply
   1,571.98x = 2,169.06 × 908.83
4. Step 4: Simplify right side
   1,571.98x = 1,971,306.80
5. Step 5: Solve for x
   x = 1,971,306.80/1,571.98
6. Step 6: Final answer
   x = 1,254.03