Finding the Fourth Proportional to 3,870.08, 5,340.81 and 2,276.84

Step by Step Solution

1. Step 1: Write the proportion equation
   3,870.08 : 5,340.81 = 2,276.84 : x
2. Step 2: Convert to fraction form
   3,870.08/5,340.81 = 2,276.84/x
3. Step 3: Cross multiply
   3,870.08x = 5,340.81 × 2,276.84
4. Step 4: Simplify right side
   3,870.08x = 12,160,143.14
5. Step 5: Solve for x
   x = 12,160,143.14/3,870.08
6. Step 6: Final answer
   x = 3,142.09