Finding the Fourth Proportional to 2,406.47, 3,320.86 and 1,344.21

Step by Step Solution

1. Step 1: Write the proportion equation
   2,406.47 : 3,320.86 = 1,344.21 : x
2. Step 2: Convert to fraction form
   2,406.47/3,320.86 = 1,344.21/x
3. Step 3: Cross multiply
   2,406.47x = 3,320.86 × 1,344.21
4. Step 4: Simplify right side
   2,406.47x = 4,463,916.62
5. Step 5: Solve for x
   x = 4,463,916.62/2,406.47
6. Step 6: Final answer
   x = 1,854.96