Finding the Fourth Proportional to 2,276.10, 3,141.32 and 1,281.57

Step by Step Solution

1. Step 1: Write the proportion equation
   2,276.10 : 3,141.32 = 1,281.57 : x
2. Step 2: Convert to fraction form
   2,276.10/3,141.32 = 1,281.57/x
3. Step 3: Cross multiply
   2,276.10x = 3,141.32 × 1,281.57
4. Step 4: Simplify right side
   2,276.10x = 4,025,815.06
5. Step 5: Solve for x
   x = 4,025,815.06/2,276.10
6. Step 6: Final answer
   x = 1,768.73