Finding the Fourth Proportional to 4,978.10, 7,469.08 and 2,055.72

Step by Step Solution

1. Step 1: Write the proportion equation
   4,978.10 : 7,469.08 = 2,055.72 : x
2. Step 2: Convert to fraction form
   4,978.10/7,469.08 = 2,055.72/x
3. Step 3: Cross multiply
   4,978.10x = 7,469.08 × 2,055.72
4. Step 4: Simplify right side
   4,978.10x = 15,354,337.14
5. Step 5: Solve for x
   x = 15,354,337.14/4,978.10
6. Step 6: Final answer
   x = 3,084.38