Finding the Fourth Proportional to 2,386.82, 3,581.45 and 1,088.12

Step by Step Solution

1. Step 1: Write the proportion equation
   2,386.82 : 3,581.45 = 1,088.12 : x
2. Step 2: Convert to fraction form
   2,386.82/3,581.45 = 1,088.12/x
3. Step 3: Cross multiply
   2,386.82x = 3,581.45 × 1,088.12
4. Step 4: Simplify right side
   2,386.82x = 3,897,047.37
5. Step 5: Solve for x
   x = 3,897,047.37/2,386.82
6. Step 6: Final answer
   x = 1,632.74