Finding the Fourth Proportional to 2,392.74, 3,589.72 and 1,222.29

Step by Step Solution

1. Step 1: Write the proportion equation
   2,392.74 : 3,589.72 = 1,222.29 : x
2. Step 2: Convert to fraction form
   2,392.74/3,589.72 = 1,222.29/x
3. Step 3: Cross multiply
   2,392.74x = 3,589.72 × 1,222.29
4. Step 4: Simplify right side
   2,392.74x = 4,387,675.80
5. Step 5: Solve for x
   x = 4,387,675.80/2,392.74
6. Step 6: Final answer
   x = 1,833.75