Finding the Fourth Proportional to 2,768.92, 4,152.67 and 1,209.33

Step by Step Solution

1. Step 1: Write the proportion equation
   2,768.92 : 4,152.67 = 1,209.33 : x
2. Step 2: Convert to fraction form
   2,768.92/4,152.67 = 1,209.33/x
3. Step 3: Cross multiply
   2,768.92x = 4,152.67 × 1,209.33
4. Step 4: Simplify right side
   2,768.92x = 5,021,945.39
5. Step 5: Solve for x
   x = 5,021,945.39/2,768.92
6. Step 6: Final answer
   x = 1,813.69