Finding the Fourth Proportional to 2,183.01, 3,012.61 and 1,188.33

Step by Step Solution

1. Step 1: Write the proportion equation
   2,183.01 : 3,012.61 = 1,188.33 : x
2. Step 2: Convert to fraction form
   2,183.01/3,012.61 = 1,188.33/x
3. Step 3: Cross multiply
   2,183.01x = 3,012.61 × 1,188.33
4. Step 4: Simplify right side
   2,183.01x = 3,579,953.84
5. Step 5: Solve for x
   x = 3,579,953.84/2,183.01
6. Step 6: Final answer
   x = 1,639.92