Finding the Fourth Proportional to 1,786.85, 2,464.83 and 1,040.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,786.85 : 2,464.83 = 1,040.72 : x
2. Step 2: Convert to fraction form
   1,786.85/2,464.83 = 1,040.72/x
3. Step 3: Cross multiply
   1,786.85x = 2,464.83 × 1,040.72
4. Step 4: Simplify right side
   1,786.85x = 2,565,185.55
5. Step 5: Solve for x
   x = 2,565,185.55/1,786.85
6. Step 6: Final answer
   x = 1,435.59