Finding the Fourth Proportional to 3,440.69, 5,157.54 and 1,359.89

Step by Step Solution

1. Step 1: Write the proportion equation
   3,440.69 : 5,157.54 = 1,359.89 : x
2. Step 2: Convert to fraction form
   3,440.69/5,157.54 = 1,359.89/x
3. Step 3: Cross multiply
   3,440.69x = 5,157.54 × 1,359.89
4. Step 4: Simplify right side
   3,440.69x = 7,013,661.28
5. Step 5: Solve for x
   x = 7,013,661.28/3,440.69
6. Step 6: Final answer
   x = 2,038.45