Finding the Fourth Proportional to 2,276.67, 3,141.42 and 1,281.87

Step by Step Solution

1. Step 1: Write the proportion equation
   2,276.67 : 3,141.42 = 1,281.87 : x
2. Step 2: Convert to fraction form
   2,276.67/3,141.42 = 1,281.87/x
3. Step 3: Cross multiply
   2,276.67x = 3,141.42 × 1,281.87
4. Step 4: Simplify right side
   2,276.67x = 4,026,892.06
5. Step 5: Solve for x
   x = 4,026,892.06/2,276.67
6. Step 6: Final answer
   x = 1,768.76