Finding the Fourth Proportional to 2,661.28, 3,673.20 and 1,834.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,661.28 : 3,673.20 = 1,834.72 : x
2. Step 2: Convert to fraction form
   2,661.28/3,673.20 = 1,834.72/x
3. Step 3: Cross multiply
   2,661.28x = 3,673.20 × 1,834.72
4. Step 4: Simplify right side
   2,661.28x = 6,739,293.50
5. Step 5: Solve for x
   x = 6,739,293.50/2,661.28
6. Step 6: Final answer
   x = 2,532.35