Finding the Fourth Proportional to 7,323.03, 10,986.42 and 2,128.91

Step by Step Solution

1. Step 1: Write the proportion equation
   7,323.03 : 10,986.42 = 2,128.91 : x
2. Step 2: Convert to fraction form
   7,323.03/10,986.42 = 2,128.91/x
3. Step 3: Cross multiply
   7,323.03x = 10,986.42 × 2,128.91
4. Step 4: Simplify right side
   7,323.03x = 23,389,058.20
5. Step 5: Solve for x
   x = 23,389,058.20/7,323.03
6. Step 6: Final answer
   x = 3,193.90