Finding the Fourth Proportional to 2,667.40, 3,729.50 and 2,667.40

Step by Step Solution

1. Step 1: Write the proportion equation
   2,667.40 : 3,729.50 = 2,667.40 : x
2. Step 2: Convert to fraction form
   2,667.40/3,729.50 = 2,667.40/x
3. Step 3: Cross multiply
   2,667.40x = 3,729.50 × 2,667.40
4. Step 4: Simplify right side
   2,667.40x = 9,948,068.30
5. Step 5: Solve for x
   x = 9,948,068.30/2,667.40
6. Step 6: Final answer
   x = 3,729.50