Finding the Fourth Proportional to 2,874.58, 4,317.34 and 1,786.55

Step by Step Solution

1. Step 1: Write the proportion equation
   2,874.58 : 4,317.34 = 1,786.55 : x
2. Step 2: Convert to fraction form
   2,874.58/4,317.34 = 1,786.55/x
3. Step 3: Cross multiply
   2,874.58x = 4,317.34 × 1,786.55
4. Step 4: Simplify right side
   2,874.58x = 7,713,143.78
5. Step 5: Solve for x
   x = 7,713,143.78/2,874.58
6. Step 6: Final answer
   x = 2,683.22