Finding the Fourth Proportional to 3,661.40, 5,496.15 and 2,276.30

Step by Step Solution

1. Step 1: Write the proportion equation
   3,661.40 : 5,496.15 = 2,276.30 : x
2. Step 2: Convert to fraction form
   3,661.40/5,496.15 = 2,276.30/x
3. Step 3: Cross multiply
   3,661.40x = 5,496.15 × 2,276.30
4. Step 4: Simplify right side
   3,661.40x = 12,510,886.25
5. Step 5: Solve for x
   x = 12,510,886.25/3,661.40
6. Step 6: Final answer
   x = 3,416.97