Finding the Fourth Proportional to 4,828.50, 7,242.83 and 1,906.78

Step by Step Solution

1. Step 1: Write the proportion equation
   4,828.50 : 7,242.83 = 1,906.78 : x
2. Step 2: Convert to fraction form
   4,828.50/7,242.83 = 1,906.78/x
3. Step 3: Cross multiply
   4,828.50x = 7,242.83 × 1,906.78
4. Step 4: Simplify right side
   4,828.50x = 13,810,483.39
5. Step 5: Solve for x
   x = 13,810,483.39/4,828.50
6. Step 6: Final answer
   x = 2,860.20