Finding the Fourth Proportional to 2,039.56, 2,813.82 and 1,200.16

Step by Step Solution

1. Step 1: Write the proportion equation
   2,039.56 : 2,813.82 = 1,200.16 : x
2. Step 2: Convert to fraction form
   2,039.56/2,813.82 = 1,200.16/x
3. Step 3: Cross multiply
   2,039.56x = 2,813.82 × 1,200.16
4. Step 4: Simplify right side
   2,039.56x = 3,377,034.21
5. Step 5: Solve for x
   x = 3,377,034.21/2,039.56
6. Step 6: Final answer
   x = 1,655.77