Finding the Fourth Proportional to 2,128.22, 3,192.41 and 741.30

Step by Step Solution

1. Step 1: Write the proportion equation
   2,128.22 : 3,192.41 = 741.30 : x
2. Step 2: Convert to fraction form
   2,128.22/3,192.41 = 741.30/x
3. Step 3: Cross multiply
   2,128.22x = 3,192.41 × 741.30
4. Step 4: Simplify right side
   2,128.22x = 2,366,541.37
5. Step 5: Solve for x
   x = 2,366,541.37/2,128.22
6. Step 6: Final answer
   x = 1,111.98