Finding the Fourth Proportional to 2,276.78, 3,141.59 and 1,282.05

Step by Step Solution

1. Step 1: Write the proportion equation
   2,276.78 : 3,141.59 = 1,282.05 : x
2. Step 2: Convert to fraction form
   2,276.78/3,141.59 = 1,282.05/x
3. Step 3: Cross multiply
   2,276.78x = 3,141.59 × 1,282.05
4. Step 4: Simplify right side
   2,276.78x = 4,027,669.05
5. Step 5: Solve for x
   x = 4,027,669.05/2,276.78
6. Step 6: Final answer
   x = 1,769.02