Finding the Fourth Proportional to 2,229.95, 3,077.33 and 1,235.31

Step by Step Solution

1. Step 1: Write the proportion equation
   2,229.95 : 3,077.33 = 1,235.31 : x
2. Step 2: Convert to fraction form
   2,229.95/3,077.33 = 1,235.31/x
3. Step 3: Cross multiply
   2,229.95x = 3,077.33 × 1,235.31
4. Step 4: Simplify right side
   2,229.95x = 3,801,450.35
5. Step 5: Solve for x
   x = 3,801,450.35/2,229.95
6. Step 6: Final answer
   x = 1,704.73