Finding the Fourth Proportional to 2,180.93, 3,009.72 and 1,186.23

Step by Step Solution

1. Step 1: Write the proportion equation
   2,180.93 : 3,009.72 = 1,186.23 : x
2. Step 2: Convert to fraction form
   2,180.93/3,009.72 = 1,186.23/x
3. Step 3: Cross multiply
   2,180.93x = 3,009.72 × 1,186.23
4. Step 4: Simplify right side
   2,180.93x = 3,570,202.14
5. Step 5: Solve for x
   x = 3,570,202.14/2,180.93
6. Step 6: Final answer
   x = 1,637.01