Finding the Fourth Proportional to 2,656.67, 3,986.54 and 1,096.38

Step by Step Solution

1. Step 1: Write the proportion equation
   2,656.67 : 3,986.54 = 1,096.38 : x
2. Step 2: Convert to fraction form
   2,656.67/3,986.54 = 1,096.38/x
3. Step 3: Cross multiply
   2,656.67x = 3,986.54 × 1,096.38
4. Step 4: Simplify right side
   2,656.67x = 4,370,765.47
5. Step 5: Solve for x
   x = 4,370,765.47/2,656.67
6. Step 6: Final answer
   x = 1,645.21