Finding the Fourth Proportional to 2,813.31, 4,220.23 and 733.31

Step by Step Solution

1. Step 1: Write the proportion equation
   2,813.31 : 4,220.23 = 733.31 : x
2. Step 2: Convert to fraction form
   2,813.31/4,220.23 = 733.31/x
3. Step 3: Cross multiply
   2,813.31x = 4,220.23 × 733.31
4. Step 4: Simplify right side
   2,813.31x = 3,094,736.86
5. Step 5: Solve for x
   x = 3,094,736.86/2,813.31
6. Step 6: Final answer
   x = 1,100.03