Finding the Fourth Proportional to 2,180.75, 3,009.37 and 1,186.01

Step by Step Solution

1. Step 1: Write the proportion equation
   2,180.75 : 3,009.37 = 1,186.01 : x
2. Step 2: Convert to fraction form
   2,180.75/3,009.37 = 1,186.01/x
3. Step 3: Cross multiply
   2,180.75x = 3,009.37 × 1,186.01
4. Step 4: Simplify right side
   2,180.75x = 3,569,142.91
5. Step 5: Solve for x
   x = 3,569,142.91/2,180.75
6. Step 6: Final answer
   x = 1,636.66