Finding the Fourth Proportional to 3,937.94, 5,436.69 and 3,500.58

Step by Step Solution

1. Step 1: Write the proportion equation
   3,937.94 : 5,436.69 = 3,500.58 : x
2. Step 2: Convert to fraction form
   3,937.94/5,436.69 = 3,500.58/x
3. Step 3: Cross multiply
   3,937.94x = 5,436.69 × 3,500.58
4. Step 4: Simplify right side
   3,937.94x = 19,031,568.28
5. Step 5: Solve for x
   x = 19,031,568.28/3,937.94
6. Step 6: Final answer
   x = 4,832.87