Finding the Fourth Proportional to 2,404.81, 3,318.74 and 1,356.88

Step by Step Solution

1. Step 1: Write the proportion equation
   2,404.81 : 3,318.74 = 1,356.88 : x
2. Step 2: Convert to fraction form
   2,404.81/3,318.74 = 1,356.88/x
3. Step 3: Cross multiply
   2,404.81x = 3,318.74 × 1,356.88
4. Step 4: Simplify right side
   2,404.81x = 4,503,131.93
5. Step 5: Solve for x
   x = 4,503,131.93/2,404.81
6. Step 6: Final answer
   x = 1,872.55