Finding the Fourth Proportional to 3,786.39, 5,671.38 and 1,834.50

Step by Step Solution

1. Step 1: Write the proportion equation
   3,786.39 : 5,671.38 = 1,834.50 : x
2. Step 2: Convert to fraction form
   3,786.39/5,671.38 = 1,834.50/x
3. Step 3: Cross multiply
   3,786.39x = 5,671.38 × 1,834.50
4. Step 4: Simplify right side
   3,786.39x = 10,404,146.61
5. Step 5: Solve for x
   x = 10,404,146.61/3,786.39
6. Step 6: Final answer
   x = 2,747.77