Finding the Fourth Proportional to 2,276.57, 3,141.72 and 1,281.88

Step by Step Solution

1. Step 1: Write the proportion equation
   2,276.57 : 3,141.72 = 1,281.88 : x
2. Step 2: Convert to fraction form
   2,276.57/3,141.72 = 1,281.88/x
3. Step 3: Cross multiply
   2,276.57x = 3,141.72 × 1,281.88
4. Step 4: Simplify right side
   2,276.57x = 4,027,295.37
5. Step 5: Solve for x
   x = 4,027,295.37/2,276.57
6. Step 6: Final answer
   x = 1,769.02