Finding the Fourth Proportional to 2,340.09, 3,229.62 and 1,345.47

Step by Step Solution

1. Step 1: Write the proportion equation
   2,340.09 : 3,229.62 = 1,345.47 : x
2. Step 2: Convert to fraction form
   2,340.09/3,229.62 = 1,345.47/x
3. Step 3: Cross multiply
   2,340.09x = 3,229.62 × 1,345.47
4. Step 4: Simplify right side
   2,340.09x = 4,345,356.82
5. Step 5: Solve for x
   x = 4,345,356.82/2,340.09
6. Step 6: Final answer
   x = 1,856.92