Finding the Fourth Proportional to 2,276.29, 3,141.32 and 1,380.05

Step by Step Solution

1. Step 1: Write the proportion equation
   2,276.29 : 3,141.32 = 1,380.05 : x
2. Step 2: Convert to fraction form
   2,276.29/3,141.32 = 1,380.05/x
3. Step 3: Cross multiply
   2,276.29x = 3,141.32 × 1,380.05
4. Step 4: Simplify right side
   2,276.29x = 4,335,178.67
5. Step 5: Solve for x
   x = 4,335,178.67/2,276.29
6. Step 6: Final answer
   x = 1,904.49