Finding the Fourth Proportional to 2,180.74, 3,009.46 and 1,186.04

Step by Step Solution

1. Step 1: Write the proportion equation
   2,180.74 : 3,009.46 = 1,186.04 : x
2. Step 2: Convert to fraction form
   2,180.74/3,009.46 = 1,186.04/x
3. Step 3: Cross multiply
   2,180.74x = 3,009.46 × 1,186.04
4. Step 4: Simplify right side
   2,180.74x = 3,569,339.94
5. Step 5: Solve for x
   x = 3,569,339.94/2,180.74
6. Step 6: Final answer
   x = 1,636.76