Finding the Fourth Proportional to 2,183.19, 3,012.71 and 1,188.48

Step by Step Solution

1. Step 1: Write the proportion equation
   2,183.19 : 3,012.71 = 1,188.48 : x
2. Step 2: Convert to fraction form
   2,183.19/3,012.71 = 1,188.48/x
3. Step 3: Cross multiply
   2,183.19x = 3,012.71 × 1,188.48
4. Step 4: Simplify right side
   2,183.19x = 3,580,540.67
5. Step 5: Solve for x
   x = 3,580,540.67/2,183.19
6. Step 6: Final answer
   x = 1,640.05