Finding the Fourth Proportional to 3,789.76, 5,674.16 and 1,936.89

Step by Step Solution

1. Step 1: Write the proportion equation
   3,789.76 : 5,674.16 = 1,936.89 : x
2. Step 2: Convert to fraction form
   3,789.76/5,674.16 = 1,936.89/x
3. Step 3: Cross multiply
   3,789.76x = 5,674.16 × 1,936.89
4. Step 4: Simplify right side
   3,789.76x = 10,990,223.76
5. Step 5: Solve for x
   x = 10,990,223.76/3,789.76
6. Step 6: Final answer
   x = 2,899.98