Finding the Fourth Proportional to 2,080.18, 2,883.79 and 1,969.21

Step by Step Solution

1. Step 1: Write the proportion equation
   2,080.18 : 2,883.79 = 1,969.21 : x
2. Step 2: Convert to fraction form
   2,080.18/2,883.79 = 1,969.21/x
3. Step 3: Cross multiply
   2,080.18x = 2,883.79 × 1,969.21
4. Step 4: Simplify right side
   2,080.18x = 5,678,763.84
5. Step 5: Solve for x
   x = 5,678,763.84/2,080.18
6. Step 6: Final answer
   x = 2,729.95