Finding the Fourth Proportional to 2,406.42, 3,320.91 and 1,358.55

Step by Step Solution

1. Step 1: Write the proportion equation
   2,406.42 : 3,320.91 = 1,358.55 : x
2. Step 2: Convert to fraction form
   2,406.42/3,320.91 = 1,358.55/x
3. Step 3: Cross multiply
   2,406.42x = 3,320.91 × 1,358.55
4. Step 4: Simplify right side
   2,406.42x = 4,511,622.28
5. Step 5: Solve for x
   x = 4,511,622.28/2,406.42
6. Step 6: Final answer
   x = 1,874.83