Finding the Fourth Proportional to 4,792.56, 7,178.42 and 2,938.04

Step by Step Solution

1. Step 1: Write the proportion equation
   4,792.56 : 7,178.42 = 2,938.04 : x
2. Step 2: Convert to fraction form
   4,792.56/7,178.42 = 2,938.04/x
3. Step 3: Cross multiply
   4,792.56x = 7,178.42 × 2,938.04
4. Step 4: Simplify right side
   4,792.56x = 21,090,485.10
5. Step 5: Solve for x
   x = 21,090,485.10/4,792.56
6. Step 6: Final answer
   x = 4,400.67