Finding the Fourth Proportional to 2,667.59, 3,982.13 and 2,547.77

Step by Step Solution

1. Step 1: Write the proportion equation
   2,667.59 : 3,982.13 = 2,547.77 : x
2. Step 2: Convert to fraction form
   2,667.59/3,982.13 = 2,547.77/x
3. Step 3: Cross multiply
   2,667.59x = 3,982.13 × 2,547.77
4. Step 4: Simplify right side
   2,667.59x = 10,145,518.70
5. Step 5: Solve for x
   x = 10,145,518.70/2,667.59
6. Step 6: Final answer
   x = 3,803.26