Finding the Fourth Proportional to 2,615.75, 3,922.03 and 1,229.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,615.75 : 3,922.03 = 1,229.50 : x
2. Step 2: Convert to fraction form
   2,615.75/3,922.03 = 1,229.50/x
3. Step 3: Cross multiply
   2,615.75x = 3,922.03 × 1,229.50
4. Step 4: Simplify right side
   2,615.75x = 4,822,135.89
5. Step 5: Solve for x
   x = 4,822,135.89/2,615.75
6. Step 6: Final answer
   x = 1,843.50