Finding the Fourth Proportional to 2,683.99, 4,025.52 and 1,222.80

Step by Step Solution

1. Step 1: Write the proportion equation
   2,683.99 : 4,025.52 = 1,222.80 : x
2. Step 2: Convert to fraction form
   2,683.99/4,025.52 = 1,222.80/x
3. Step 3: Cross multiply
   2,683.99x = 4,025.52 × 1,222.80
4. Step 4: Simplify right side
   2,683.99x = 4,922,394.20
5. Step 5: Solve for x
   x = 4,922,394.20/2,683.99
6. Step 6: Final answer
   x = 1,833.99