Finding the Fourth Proportional to 2,328.05, 3,491.59 and 684.15

Step by Step Solution

1. Step 1: Write the proportion equation
   2,328.05 : 3,491.59 = 684.15 : x
2. Step 2: Convert to fraction form
   2,328.05/3,491.59 = 684.15/x
3. Step 3: Cross multiply
   2,328.05x = 3,491.59 × 684.15
4. Step 4: Simplify right side
   2,328.05x = 2,388,767.88
5. Step 5: Solve for x
   x = 2,388,767.88/2,328.05
6. Step 6: Final answer
   x = 1,026.08