Finding the Fourth Proportional to 3,427.73, 5,142.36 and 1,087.88

Step by Step Solution

1. Step 1: Write the proportion equation
   3,427.73 : 5,142.36 = 1,087.88 : x
2. Step 2: Convert to fraction form
   3,427.73/5,142.36 = 1,087.88/x
3. Step 3: Cross multiply
   3,427.73x = 5,142.36 × 1,087.88
4. Step 4: Simplify right side
   3,427.73x = 5,594,244.89
5. Step 5: Solve for x
   x = 5,594,244.89/3,427.73
6. Step 6: Final answer
   x = 1,632.06