Finding the Fourth Proportional to 3,782.67, 5,659.71 and 3,398.99

Step by Step Solution

1. Step 1: Write the proportion equation
   3,782.67 : 5,659.71 = 3,398.99 : x
2. Step 2: Convert to fraction form
   3,782.67/5,659.71 = 3,398.99/x
3. Step 3: Cross multiply
   3,782.67x = 5,659.71 × 3,398.99
4. Step 4: Simplify right side
   3,782.67x = 19,237,269.39
5. Step 5: Solve for x
   x = 19,237,269.39/3,782.67
6. Step 6: Final answer
   x = 5,085.63