Finding the Fourth Proportional to 3,615.57, 5,423.76 and 1,667.25

Step by Step Solution

1. Step 1: Write the proportion equation
   3,615.57 : 5,423.76 = 1,667.25 : x
2. Step 2: Convert to fraction form
   3,615.57/5,423.76 = 1,667.25/x
3. Step 3: Cross multiply
   3,615.57x = 5,423.76 × 1,667.25
4. Step 4: Simplify right side
   3,615.57x = 9,042,763.86
5. Step 5: Solve for x
   x = 9,042,763.86/3,615.57
6. Step 6: Final answer
   x = 2,501.06