Finding the Fourth Proportional to 2,405.92, 3,320.31 and 1,358.14

Step by Step Solution

1. Step 1: Write the proportion equation
   2,405.92 : 3,320.31 = 1,358.14 : x
2. Step 2: Convert to fraction form
   2,405.92/3,320.31 = 1,358.14/x
3. Step 3: Cross multiply
   2,405.92x = 3,320.31 × 1,358.14
4. Step 4: Simplify right side
   2,405.92x = 4,509,445.82
5. Step 5: Solve for x
   x = 4,509,445.82/2,405.92
6. Step 6: Final answer
   x = 1,874.31