Finding the Fourth Proportional to 2,181.34, 3,010.26 and 1,186.61

Step by Step Solution

1. Step 1: Write the proportion equation
   2,181.34 : 3,010.26 = 1,186.61 : x
2. Step 2: Convert to fraction form
   2,181.34/3,010.26 = 1,186.61/x
3. Step 3: Cross multiply
   2,181.34x = 3,010.26 × 1,186.61
4. Step 4: Simplify right side
   2,181.34x = 3,572,012.14
5. Step 5: Solve for x
   x = 3,572,012.14/2,181.34
6. Step 6: Final answer
   x = 1,637.53