Finding the Fourth Proportional to 7,322.42, 10,983.94 and 2,128.30

Step by Step Solution

1. Step 1: Write the proportion equation
   7,322.42 : 10,983.94 = 2,128.30 : x
2. Step 2: Convert to fraction form
   7,322.42/10,983.94 = 2,128.30/x
3. Step 3: Cross multiply
   7,322.42x = 10,983.94 × 2,128.30
4. Step 4: Simplify right side
   7,322.42x = 23,377,086.72
5. Step 5: Solve for x
   x = 23,377,086.72/7,322.42
6. Step 6: Final answer
   x = 3,192.53