Finding the Fourth Proportional to 2,321.91, 3,479.22 and 1,395.27

Step by Step Solution

1. Step 1: Write the proportion equation
   2,321.91 : 3,479.22 = 1,395.27 : x
2. Step 2: Convert to fraction form
   2,321.91/3,479.22 = 1,395.27/x
3. Step 3: Cross multiply
   2,321.91x = 3,479.22 × 1,395.27
4. Step 4: Simplify right side
   2,321.91x = 4,854,451.29
5. Step 5: Solve for x
   x = 4,854,451.29/2,321.91
6. Step 6: Final answer
   x = 2,090.71