Finding the Fourth Proportional to 2,276.69, 3,142.33 and 1,345.33

Step by Step Solution

1. Step 1: Write the proportion equation
   2,276.69 : 3,142.33 = 1,345.33 : x
2. Step 2: Convert to fraction form
   2,276.69/3,142.33 = 1,345.33/x
3. Step 3: Cross multiply
   2,276.69x = 3,142.33 × 1,345.33
4. Step 4: Simplify right side
   2,276.69x = 4,227,464.09
5. Step 5: Solve for x
   x = 4,227,464.09/2,276.69
6. Step 6: Final answer
   x = 1,856.85