Finding the Fourth Proportional to 2,182.94, 3,012.52 and 1,188.28

Step by Step Solution

1. Step 1: Write the proportion equation
   2,182.94 : 3,012.52 = 1,188.28 : x
2. Step 2: Convert to fraction form
   2,182.94/3,012.52 = 1,188.28/x
3. Step 3: Cross multiply
   2,182.94x = 3,012.52 × 1,188.28
4. Step 4: Simplify right side
   2,182.94x = 3,579,717.27
5. Step 5: Solve for x
   x = 3,579,717.27/2,182.94
6. Step 6: Final answer
   x = 1,639.86