Finding the Fourth Proportional to 2,046.20, 3,068.72 and 729.78

Step by Step Solution

1. Step 1: Write the proportion equation
   2,046.20 : 3,068.72 = 729.78 : x
2. Step 2: Convert to fraction form
   2,046.20/3,068.72 = 729.78/x
3. Step 3: Cross multiply
   2,046.20x = 3,068.72 × 729.78
4. Step 4: Simplify right side
   2,046.20x = 2,239,490.48
5. Step 5: Solve for x
   x = 2,239,490.48/2,046.20
6. Step 6: Final answer
   x = 1,094.46