Finding the Fourth Proportional to 4,078.98, 6,116.46 and 1,305

Step by Step Solution

1. Step 1: Write the proportion equation
   4,078.98 : 6,116.46 = 1,305 : x
2. Step 2: Convert to fraction form
   4,078.98/6,116.46 = 1,305/x
3. Step 3: Cross multiply
   4,078.98x = 6,116.46 × 1,305
4. Step 4: Simplify right side
   4,078.98x = 7,981,980.30
5. Step 5: Solve for x
   x = 7,981,980.30/4,078.98
6. Step 6: Final answer
   x = 1,956.86