Finding the Fourth Proportional to 2,127.03, 3,186.28 and 1,086.99

Step by Step Solution

1. Step 1: Write the proportion equation
   2,127.03 : 3,186.28 = 1,086.99 : x
2. Step 2: Convert to fraction form
   2,127.03/3,186.28 = 1,086.99/x
3. Step 3: Cross multiply
   2,127.03x = 3,186.28 × 1,086.99
4. Step 4: Simplify right side
   2,127.03x = 3,463,443.91
5. Step 5: Solve for x
   x = 3,463,443.91/2,127.03
6. Step 6: Final answer
   x = 1,628.30