Finding the Fourth Proportional to 3,920.52, 5,876.28 and 2,185.68

Step by Step Solution

1. Step 1: Write the proportion equation
   3,920.52 : 5,876.28 = 2,185.68 : x
2. Step 2: Convert to fraction form
   3,920.52/5,876.28 = 2,185.68/x
3. Step 3: Cross multiply
   3,920.52x = 5,876.28 × 2,185.68
4. Step 4: Simplify right side
   3,920.52x = 12,843,667.67
5. Step 5: Solve for x
   x = 12,843,667.67/3,920.52
6. Step 6: Final answer
   x = 3,276.01