Finding the Fourth Proportional to 2,133.23, 2,943.83 and 1,189.06

Step by Step Solution

1. Step 1: Write the proportion equation
   2,133.23 : 2,943.83 = 1,189.06 : x
2. Step 2: Convert to fraction form
   2,133.23/2,943.83 = 1,189.06/x
3. Step 3: Cross multiply
   2,133.23x = 2,943.83 × 1,189.06
4. Step 4: Simplify right side
   2,133.23x = 3,500,384.55
5. Step 5: Solve for x
   x = 3,500,384.55/2,133.23
6. Step 6: Final answer
   x = 1,640.88