Finding the Fourth Proportional to 3,879.56, 5,792.99 and 3,774.47

Step by Step Solution

1. Step 1: Write the proportion equation
   3,879.56 : 5,792.99 = 3,774.47 : x
2. Step 2: Convert to fraction form
   3,879.56/5,792.99 = 3,774.47/x
3. Step 3: Cross multiply
   3,879.56x = 5,792.99 × 3,774.47
4. Step 4: Simplify right side
   3,879.56x = 21,865,419.13
5. Step 5: Solve for x
   x = 21,865,419.13/3,879.56
6. Step 6: Final answer
   x = 5,636.06