Finding the Fourth Proportional to 3,788.10, 5,680.77 and 1,322.22

Step by Step Solution

1. Step 1: Write the proportion equation
   3,788.10 : 5,680.77 = 1,322.22 : x
2. Step 2: Convert to fraction form
   3,788.10/5,680.77 = 1,322.22/x
3. Step 3: Cross multiply
   3,788.10x = 5,680.77 × 1,322.22
4. Step 4: Simplify right side
   3,788.10x = 7,511,227.71
5. Step 5: Solve for x
   x = 7,511,227.71/3,788.10
6. Step 6: Final answer
   x = 1,982.85