Finding the Fourth Proportional to 2,230.79, 3,078.54 and 1,346.42

Step by Step Solution

1. Step 1: Write the proportion equation
   2,230.79 : 3,078.54 = 1,346.42 : x
2. Step 2: Convert to fraction form
   2,230.79/3,078.54 = 1,346.42/x
3. Step 3: Cross multiply
   2,230.79x = 3,078.54 × 1,346.42
4. Step 4: Simplify right side
   2,230.79x = 4,145,007.83
5. Step 5: Solve for x
   x = 4,145,007.83/2,230.79
6. Step 6: Final answer
   x = 1,858.09