Finding the Fourth Proportional to 2,404.20, 3,318.10 and 1,356.46

Step by Step Solution

1. Step 1: Write the proportion equation
   2,404.20 : 3,318.10 = 1,356.46 : x
2. Step 2: Convert to fraction form
   2,404.20/3,318.10 = 1,356.46/x
3. Step 3: Cross multiply
   2,404.20x = 3,318.10 × 1,356.46
4. Step 4: Simplify right side
   2,404.20x = 4,500,869.93
5. Step 5: Solve for x
   x = 4,500,869.93/2,404.20
6. Step 6: Final answer
   x = 1,872.09