Finding the Fourth Proportional to 2,181.22, 3,010.03 and 1,186.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,181.22 : 3,010.03 = 1,186.50 : x
2. Step 2: Convert to fraction form
   2,181.22/3,010.03 = 1,186.50/x
3. Step 3: Cross multiply
   2,181.22x = 3,010.03 × 1,186.50
4. Step 4: Simplify right side
   2,181.22x = 3,571,400.60
5. Step 5: Solve for x
   x = 3,571,400.60/2,181.22
6. Step 6: Final answer
   x = 1,637.34