Finding the Fourth Proportional to 4,162.72, 6,241.98 and 1,388.41

Step by Step Solution

1. Step 1: Write the proportion equation
   4,162.72 : 6,241.98 = 1,388.41 : x
2. Step 2: Convert to fraction form
   4,162.72/6,241.98 = 1,388.41/x
3. Step 3: Cross multiply
   4,162.72x = 6,241.98 × 1,388.41
4. Step 4: Simplify right side
   4,162.72x = 8,666,427.45
5. Step 5: Solve for x
   x = 8,666,427.45/4,162.72
6. Step 6: Final answer
   x = 2,081.91