Finding the Fourth Proportional to 2,878.18, 4,317.42 and 1,233.58

Step by Step Solution

1. Step 1: Write the proportion equation
   2,878.18 : 4,317.42 = 1,233.58 : x
2. Step 2: Convert to fraction form
   2,878.18/4,317.42 = 1,233.58/x
3. Step 3: Cross multiply
   2,878.18x = 4,317.42 × 1,233.58
4. Step 4: Simplify right side
   2,878.18x = 5,325,882.96
5. Step 5: Solve for x
   x = 5,325,882.96/2,878.18
6. Step 6: Final answer
   x = 1,850.43