Finding the Fourth Proportional to 3,105.30, 4,661.55 and 1,874.10

Step by Step Solution

1. Step 1: Write the proportion equation
   3,105.30 : 4,661.55 = 1,874.10 : x
2. Step 2: Convert to fraction form
   3,105.30/4,661.55 = 1,874.10/x
3. Step 3: Cross multiply
   3,105.30x = 4,661.55 × 1,874.10
4. Step 4: Simplify right side
   3,105.30x = 8,736,210.86
5. Step 5: Solve for x
   x = 8,736,210.86/3,105.30
6. Step 6: Final answer
   x = 2,813.32