Finding the Fourth Proportional to 2,568.54, 3,852.76 and 620.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,568.54 : 3,852.76 = 620.72 : x
2. Step 2: Convert to fraction form
   2,568.54/3,852.76 = 620.72/x
3. Step 3: Cross multiply
   2,568.54x = 3,852.76 × 620.72
4. Step 4: Simplify right side
   2,568.54x = 2,391,485.19
5. Step 5: Solve for x
   x = 2,391,485.19/2,568.54
6. Step 6: Final answer
   x = 931.07