Finding the Fourth Proportional to 3,945.45, 5,445.32 and 2,373.87

Step by Step Solution

1. Step 1: Write the proportion equation
   3,945.45 : 5,445.32 = 2,373.87 : x
2. Step 2: Convert to fraction form
   3,945.45/5,445.32 = 2,373.87/x
3. Step 3: Cross multiply
   3,945.45x = 5,445.32 × 2,373.87
4. Step 4: Simplify right side
   3,945.45x = 12,926,469.92
5. Step 5: Solve for x
   x = 12,926,469.92/3,945.45
6. Step 6: Final answer
   x = 3,276.30