Finding the Fourth Proportional to 2,892.78, 4,318.23 and 2,542.47

Step by Step Solution

1. Step 1: Write the proportion equation
   2,892.78 : 4,318.23 = 2,542.47 : x
2. Step 2: Convert to fraction form
   2,892.78/4,318.23 = 2,542.47/x
3. Step 3: Cross multiply
   2,892.78x = 4,318.23 × 2,542.47
4. Step 4: Simplify right side
   2,892.78x = 10,978,970.23
5. Step 5: Solve for x
   x = 10,978,970.23/2,892.78
6. Step 6: Final answer
   x = 3,795.30