Finding the Fourth Proportional to 7,196.90, 10,790.69 and 2,814.80

Step by Step Solution

1. Step 1: Write the proportion equation
   7,196.90 : 10,790.69 = 2,814.80 : x
2. Step 2: Convert to fraction form
   7,196.90/10,790.69 = 2,814.80/x
3. Step 3: Cross multiply
   7,196.90x = 10,790.69 × 2,814.80
4. Step 4: Simplify right side
   7,196.90x = 30,373,566.18
5. Step 5: Solve for x
   x = 30,373,566.18/7,196.90
6. Step 6: Final answer
   x = 4,220.37