Finding the Fourth Proportional to 2,940.60, 4,056.89 and 2,567.60

Step by Step Solution

1. Step 1: Write the proportion equation
   2,940.60 : 4,056.89 = 2,567.60 : x
2. Step 2: Convert to fraction form
   2,940.60/4,056.89 = 2,567.60/x
3. Step 3: Cross multiply
   2,940.60x = 4,056.89 × 2,567.60
4. Step 4: Simplify right side
   2,940.60x = 10,416,452.85
5. Step 5: Solve for x
   x = 10,416,452.85/2,940.60
6. Step 6: Final answer
   x = 3,542.28