Finding the Fourth Proportional to 3,945.67, 5,445.12 and 2,267.35

Step by Step Solution

1. Step 1: Write the proportion equation
   3,945.67 : 5,445.12 = 2,267.35 : x
2. Step 2: Convert to fraction form
   3,945.67/5,445.12 = 2,267.35/x
3. Step 3: Cross multiply
   3,945.67x = 5,445.12 × 2,267.35
4. Step 4: Simplify right side
   3,945.67x = 12,345,992.83
5. Step 5: Solve for x
   x = 12,345,992.83/3,945.67
6. Step 6: Final answer
   x = 3,129.00