Finding the Fourth Proportional to 2,231.69, 3,079.73 and 1,347.71

Step by Step Solution

1. Step 1: Write the proportion equation
   2,231.69 : 3,079.73 = 1,347.71 : x
2. Step 2: Convert to fraction form
   2,231.69/3,079.73 = 1,347.71/x
3. Step 3: Cross multiply
   2,231.69x = 3,079.73 × 1,347.71
4. Step 4: Simplify right side
   2,231.69x = 4,150,575.22
5. Step 5: Solve for x
   x = 4,150,575.22/2,231.69
6. Step 6: Final answer
   x = 1,859.84