Finding the Fourth Proportional to 7,322.99, 10,984.78 and 2,128.86

Step by Step Solution

1. Step 1: Write the proportion equation
   7,322.99 : 10,984.78 = 2,128.86 : x
2. Step 2: Convert to fraction form
   7,322.99/10,984.78 = 2,128.86/x
3. Step 3: Cross multiply
   7,322.99x = 10,984.78 × 2,128.86
4. Step 4: Simplify right side
   7,322.99x = 23,385,061.41
5. Step 5: Solve for x
   x = 23,385,061.41/7,322.99
6. Step 6: Final answer
   x = 3,193.38