Finding the Fourth Proportional to 3,345.69, 5,018.64 and 1,589.79

Step by Step Solution

1. Step 1: Write the proportion equation
   3,345.69 : 5,018.64 = 1,589.79 : x
2. Step 2: Convert to fraction form
   3,345.69/5,018.64 = 1,589.79/x
3. Step 3: Cross multiply
   3,345.69x = 5,018.64 × 1,589.79
4. Step 4: Simplify right side
   3,345.69x = 7,978,583.69
5. Step 5: Solve for x
   x = 7,978,583.69/3,345.69
6. Step 6: Final answer
   x = 2,384.73