Finding the Fourth Proportional to 3,863.98, 5,331.40 and 2,607.37

Step by Step Solution

1. Step 1: Write the proportion equation
   3,863.98 : 5,331.40 = 2,607.37 : x
2. Step 2: Convert to fraction form
   3,863.98/5,331.40 = 2,607.37/x
3. Step 3: Cross multiply
   3,863.98x = 5,331.40 × 2,607.37
4. Step 4: Simplify right side
   3,863.98x = 13,900,905.76
5. Step 5: Solve for x
   x = 13,900,905.76/3,863.98
6. Step 6: Final answer
   x = 3,597.56