Finding the Fourth Proportional to 2,189.84, 3,285.77 and 1,367.89

Step by Step Solution

1. Step 1: Write the proportion equation
   2,189.84 : 3,285.77 = 1,367.89 : x
2. Step 2: Convert to fraction form
   2,189.84/3,285.77 = 1,367.89/x
3. Step 3: Cross multiply
   2,189.84x = 3,285.77 × 1,367.89
4. Step 4: Simplify right side
   2,189.84x = 4,494,556.87
5. Step 5: Solve for x
   x = 4,494,556.87/2,189.84
6. Step 6: Final answer
   x = 2,052.46