Finding the Fourth Proportional to 3,459.29, 5,188.89 and 1,119.23

Step by Step Solution

1. Step 1: Write the proportion equation
   3,459.29 : 5,188.89 = 1,119.23 : x
2. Step 2: Convert to fraction form
   3,459.29/5,188.89 = 1,119.23/x
3. Step 3: Cross multiply
   3,459.29x = 5,188.89 × 1,119.23
4. Step 4: Simplify right side
   3,459.29x = 5,807,573.34
5. Step 5: Solve for x
   x = 5,807,573.34/3,459.29
6. Step 6: Final answer
   x = 1,678.84