Finding the Fourth Proportional to 2,404.85, 3,318.74 and 1,356.91

Step by Step Solution

1. Step 1: Write the proportion equation
   2,404.85 : 3,318.74 = 1,356.91 : x
2. Step 2: Convert to fraction form
   2,404.85/3,318.74 = 1,356.91/x
3. Step 3: Cross multiply
   2,404.85x = 3,318.74 × 1,356.91
4. Step 4: Simplify right side
   2,404.85x = 4,503,208.12
5. Step 5: Solve for x
   x = 4,503,208.12/2,404.85
6. Step 6: Final answer
   x = 1,872.56