Finding the Fourth Proportional to 2,128.82, 3,191.06 and 741.46

Step by Step Solution

1. Step 1: Write the proportion equation
   2,128.82 : 3,191.06 = 741.46 : x
2. Step 2: Convert to fraction form
   2,128.82/3,191.06 = 741.46/x
3. Step 3: Cross multiply
   2,128.82x = 3,191.06 × 741.46
4. Step 4: Simplify right side
   2,128.82x = 2,366,043.35
5. Step 5: Solve for x
   x = 2,366,043.35/2,128.82
6. Step 6: Final answer
   x = 1,111.43