Finding the Fourth Proportional to 2,039.49, 2,814.33 and 1,200.22

Step by Step Solution

1. Step 1: Write the proportion equation
   2,039.49 : 2,814.33 = 1,200.22 : x
2. Step 2: Convert to fraction form
   2,039.49/2,814.33 = 1,200.22/x
3. Step 3: Cross multiply
   2,039.49x = 2,814.33 × 1,200.22
4. Step 4: Simplify right side
   2,039.49x = 3,377,815.15
5. Step 5: Solve for x
   x = 3,377,815.15/2,039.49
6. Step 6: Final answer
   x = 1,656.21