Finding the Fourth Proportional to 3,640.30, 5,023.76 and 2,068.54

Step by Step Solution

1. Step 1: Write the proportion equation
   3,640.30 : 5,023.76 = 2,068.54 : x
2. Step 2: Convert to fraction form
   3,640.30/5,023.76 = 2,068.54/x
3. Step 3: Cross multiply
   3,640.30x = 5,023.76 × 2,068.54
4. Step 4: Simplify right side
   3,640.30x = 10,391,848.51
5. Step 5: Solve for x
   x = 10,391,848.51/3,640.30
6. Step 6: Final answer
   x = 2,854.67