Finding the Fourth Proportional to 3,667.42, 5,503.80 and 2,945.68

Step by Step Solution

1. Step 1: Write the proportion equation
   3,667.42 : 5,503.80 = 2,945.68 : x
2. Step 2: Convert to fraction form
   3,667.42/5,503.80 = 2,945.68/x
3. Step 3: Cross multiply
   3,667.42x = 5,503.80 × 2,945.68
4. Step 4: Simplify right side
   3,667.42x = 16,212,433.58
5. Step 5: Solve for x
   x = 16,212,433.58/3,667.42
6. Step 6: Final answer
   x = 4,420.66