Finding the Fourth Proportional to 3,994.47, 5,499.82 and 3,395.78

Step by Step Solution

1. Step 1: Write the proportion equation
   3,994.47 : 5,499.82 = 3,395.78 : x
2. Step 2: Convert to fraction form
   3,994.47/5,499.82 = 3,395.78/x
3. Step 3: Cross multiply
   3,994.47x = 5,499.82 × 3,395.78
4. Step 4: Simplify right side
   3,994.47x = 18,676,161.78
5. Step 5: Solve for x
   x = 18,676,161.78/3,994.47
6. Step 6: Final answer
   x = 4,675.51