Finding the Fourth Proportional to 2,276.04, 3,140.52 and 1,281.30

Step by Step Solution

1. Step 1: Write the proportion equation
   2,276.04 : 3,140.52 = 1,281.30 : x
2. Step 2: Convert to fraction form
   2,276.04/3,140.52 = 1,281.30/x
3. Step 3: Cross multiply
   2,276.04x = 3,140.52 × 1,281.30
4. Step 4: Simplify right side
   2,276.04x = 4,023,948.28
5. Step 5: Solve for x
   x = 4,023,948.28/2,276.04
6. Step 6: Final answer
   x = 1,767.96