Finding the Fourth Proportional to 2,574.59, 3,863.31 and 1,404.55

Step by Step Solution

1. Step 1: Write the proportion equation
   2,574.59 : 3,863.31 = 1,404.55 : x
2. Step 2: Convert to fraction form
   2,574.59/3,863.31 = 1,404.55/x
3. Step 3: Cross multiply
   2,574.59x = 3,863.31 × 1,404.55
4. Step 4: Simplify right side
   2,574.59x = 5,426,185.72
5. Step 5: Solve for x
   x = 5,426,185.72/2,574.59
6. Step 6: Final answer
   x = 2,107.59