Finding the Fourth Proportional to 2,782.26, 4,167.72 and 2,231.46

Step by Step Solution

1. Step 1: Write the proportion equation
   2,782.26 : 4,167.72 = 2,231.46 : x
2. Step 2: Convert to fraction form
   2,782.26/4,167.72 = 2,231.46/x
3. Step 3: Cross multiply
   2,782.26x = 4,167.72 × 2,231.46
4. Step 4: Simplify right side
   2,782.26x = 9,300,100.47
5. Step 5: Solve for x
   x = 9,300,100.47/2,782.26
6. Step 6: Final answer
   x = 3,342.64