Finding the Fourth Proportional to 6,911.69, 10,367.33 and 1,981.22

Step by Step Solution

1. Step 1: Write the proportion equation
   6,911.69 : 10,367.33 = 1,981.22 : x
2. Step 2: Convert to fraction form
   6,911.69/10,367.33 = 1,981.22/x
3. Step 3: Cross multiply
   6,911.69x = 10,367.33 × 1,981.22
4. Step 4: Simplify right side
   6,911.69x = 20,539,899.80
5. Step 5: Solve for x
   x = 20,539,899.80/6,911.69
6. Step 6: Final answer
   x = 2,971.76