Finding the Fourth Proportional to 2,181.06, 3,009.83 and 1,186.34

Step by Step Solution

1. Step 1: Write the proportion equation
   2,181.06 : 3,009.83 = 1,186.34 : x
2. Step 2: Convert to fraction form
   2,181.06/3,009.83 = 1,186.34/x
3. Step 3: Cross multiply
   2,181.06x = 3,009.83 × 1,186.34
4. Step 4: Simplify right side
   2,181.06x = 3,570,675.79
5. Step 5: Solve for x
   x = 3,570,675.79/2,181.06
6. Step 6: Final answer
   x = 1,637.13