Finding the Fourth Proportional to 2,223.88, 3,329.34 and 1,248.68

Step by Step Solution

1. Step 1: Write the proportion equation
   2,223.88 : 3,329.34 = 1,248.68 : x
2. Step 2: Convert to fraction form
   2,223.88/3,329.34 = 1,248.68/x
3. Step 3: Cross multiply
   2,223.88x = 3,329.34 × 1,248.68
4. Step 4: Simplify right side
   2,223.88x = 4,157,280.27
5. Step 5: Solve for x
   x = 4,157,280.27/2,223.88
6. Step 6: Final answer
   x = 1,869.38