Finding the Fourth Proportional to 3,932.51, 5,426.82 and 2,231.34

Step by Step Solution

1. Step 1: Write the proportion equation
   3,932.51 : 5,426.82 = 2,231.34 : x
2. Step 2: Convert to fraction form
   3,932.51/5,426.82 = 2,231.34/x
3. Step 3: Cross multiply
   3,932.51x = 5,426.82 × 2,231.34
4. Step 4: Simplify right side
   3,932.51x = 12,109,053.40
5. Step 5: Solve for x
   x = 12,109,053.40/3,932.51
6. Step 6: Final answer
   x = 3,079.22