Finding the Fourth Proportional to 2,128.05, 3,191.06 and 741.22

Step by Step Solution

1. Step 1: Write the proportion equation
   2,128.05 : 3,191.06 = 741.22 : x
2. Step 2: Convert to fraction form
   2,128.05/3,191.06 = 741.22/x
3. Step 3: Cross multiply
   2,128.05x = 3,191.06 × 741.22
4. Step 4: Simplify right side
   2,128.05x = 2,365,264.00
5. Step 5: Solve for x
   x = 2,365,264.00/2,128.05
6. Step 6: Final answer
   x = 1,111.47