Finding the Fourth Proportional to 3,938.55, 5,907.84 and 3,697.98

Step by Step Solution

1. Step 1: Write the proportion equation
   3,938.55 : 5,907.84 = 3,697.98 : x
2. Step 2: Convert to fraction form
   3,938.55/5,907.84 = 3,697.98/x
3. Step 3: Cross multiply
   3,938.55x = 5,907.84 × 3,697.98
4. Step 4: Simplify right side
   3,938.55x = 21,847,074.16
5. Step 5: Solve for x
   x = 21,847,074.16/3,938.55
6. Step 6: Final answer
   x = 5,546.98