Finding the Fourth Proportional to 2,405.94, 3,320.50 and 1,358.22

Step by Step Solution

1. Step 1: Write the proportion equation
   2,405.94 : 3,320.50 = 1,358.22 : x
2. Step 2: Convert to fraction form
   2,405.94/3,320.50 = 1,358.22/x
3. Step 3: Cross multiply
   2,405.94x = 3,320.50 × 1,358.22
4. Step 4: Simplify right side
   2,405.94x = 4,509,969.51
5. Step 5: Solve for x
   x = 4,509,969.51/2,405.94
6. Step 6: Final answer
   x = 1,874.51