Finding the Fourth Proportional to 2,745.56, 3,788.16 and 2,045.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,745.56 : 3,788.16 = 2,045.72 : x
2. Step 2: Convert to fraction form
   2,745.56/3,788.16 = 2,045.72/x
3. Step 3: Cross multiply
   2,745.56x = 3,788.16 × 2,045.72
4. Step 4: Simplify right side
   2,745.56x = 7,749,514.68
5. Step 5: Solve for x
   x = 7,749,514.68/2,745.56
6. Step 6: Final answer
   x = 2,822.56