Finding the Fourth Proportional to 4,678.29, 7,018.71 and 1,558.80

Step by Step Solution

1. Step 1: Write the proportion equation
   4,678.29 : 7,018.71 = 1,558.80 : x
2. Step 2: Convert to fraction form
   4,678.29/7,018.71 = 1,558.80/x
3. Step 3: Cross multiply
   4,678.29x = 7,018.71 × 1,558.80
4. Step 4: Simplify right side
   4,678.29x = 10,940,765.15
5. Step 5: Solve for x
   x = 10,940,765.15/4,678.29
6. Step 6: Final answer
   x = 2,338.62