Finding the Fourth Proportional to 2,128.88, 3,192.41 and 741.96

Step by Step Solution

1. Step 1: Write the proportion equation
   2,128.88 : 3,192.41 = 741.96 : x
2. Step 2: Convert to fraction form
   2,128.88/3,192.41 = 741.96/x
3. Step 3: Cross multiply
   2,128.88x = 3,192.41 × 741.96
4. Step 4: Simplify right side
   2,128.88x = 2,368,642.38
5. Step 5: Solve for x
   x = 2,368,642.38/2,128.88
6. Step 6: Final answer
   x = 1,112.62