Finding the Fourth Proportional to 9,321.98, 13,983.41 and 2,748.23

Step by Step Solution

1. Step 1: Write the proportion equation
   9,321.98 : 13,983.41 = 2,748.23 : x
2. Step 2: Convert to fraction form
   9,321.98/13,983.41 = 2,748.23/x
3. Step 3: Cross multiply
   9,321.98x = 13,983.41 × 2,748.23
4. Step 4: Simplify right side
   9,321.98x = 38,429,626.86
5. Step 5: Solve for x
   x = 38,429,626.86/9,321.98
6. Step 6: Final answer
   x = 4,122.47