Finding the Fourth Proportional to 2,788.16, 3,847.41 and 2,003.45

Step by Step Solution

1. Step 1: Write the proportion equation
   2,788.16 : 3,847.41 = 2,003.45 : x
2. Step 2: Convert to fraction form
   2,788.16/3,847.41 = 2,003.45/x
3. Step 3: Cross multiply
   2,788.16x = 3,847.41 × 2,003.45
4. Step 4: Simplify right side
   2,788.16x = 7,708,074.33
5. Step 5: Solve for x
   x = 7,708,074.33/2,788.16
6. Step 6: Final answer
   x = 2,764.58