Finding the Fourth Proportional to 2,180.32, 3,008.77 and 1,185.57

Step by Step Solution

1. Step 1: Write the proportion equation
   2,180.32 : 3,008.77 = 1,185.57 : x
2. Step 2: Convert to fraction form
   2,180.32/3,008.77 = 1,185.57/x
3. Step 3: Cross multiply
   2,180.32x = 3,008.77 × 1,185.57
4. Step 4: Simplify right side
   2,180.32x = 3,567,107.45
5. Step 5: Solve for x
   x = 3,567,107.45/2,180.32
6. Step 6: Final answer
   x = 1,636.05