Finding the Fourth Proportional to 3,853.51, 5,788.09 and 3,401.53

Step by Step Solution

1. Step 1: Write the proportion equation
   3,853.51 : 5,788.09 = 3,401.53 : x
2. Step 2: Convert to fraction form
   3,853.51/5,788.09 = 3,401.53/x
3. Step 3: Cross multiply
   3,853.51x = 5,788.09 × 3,401.53
4. Step 4: Simplify right side
   3,853.51x = 19,688,361.78
5. Step 5: Solve for x
   x = 19,688,361.78/3,853.51
6. Step 6: Final answer
   x = 5,109.20