Finding the Fourth Proportional to 3,427.07, 5,141.39 and 1,087.07

Step by Step Solution

1. Step 1: Write the proportion equation
   3,427.07 : 5,141.39 = 1,087.07 : x
2. Step 2: Convert to fraction form
   3,427.07/5,141.39 = 1,087.07/x
3. Step 3: Cross multiply
   3,427.07x = 5,141.39 × 1,087.07
4. Step 4: Simplify right side
   3,427.07x = 5,589,019.69
5. Step 5: Solve for x
   x = 5,589,019.69/3,427.07
6. Step 6: Final answer
   x = 1,630.85