Finding the Fourth Proportional to 2,843.52, 3,922.56 and 1,912.32

Step by Step Solution

1. Step 1: Write the proportion equation
   2,843.52 : 3,922.56 = 1,912.32 : x
2. Step 2: Convert to fraction form
   2,843.52/3,922.56 = 1,912.32/x
3. Step 3: Cross multiply
   2,843.52x = 3,922.56 × 1,912.32
4. Step 4: Simplify right side
   2,843.52x = 7,501,189.94
5. Step 5: Solve for x
   x = 7,501,189.94/2,843.52
6. Step 6: Final answer
   x = 2,637.99