Finding the Fourth Proportional to 2,183.00, 3,012.50 and 1,188.25

Step by Step Solution

1. Step 1: Write the proportion equation
   2,183.00 : 3,012.50 = 1,188.25 : x
2. Step 2: Convert to fraction form
   2,183.00/3,012.50 = 1,188.25/x
3. Step 3: Cross multiply
   2,183.00x = 3,012.50 × 1,188.25
4. Step 4: Simplify right side
   2,183.00x = 3,579,598.56
5. Step 5: Solve for x
   x = 3,579,598.56/2,183.00
6. Step 6: Final answer
   x = 1,639.76