Finding the Fourth Proportional to 3,820.45, 5,272.71 and 2,328.84

Step by Step Solution

1. Step 1: Write the proportion equation
   3,820.45 : 5,272.71 = 2,328.84 : x
2. Step 2: Convert to fraction form
   3,820.45/5,272.71 = 2,328.84/x
3. Step 3: Cross multiply
   3,820.45x = 5,272.71 × 2,328.84
4. Step 4: Simplify right side
   3,820.45x = 12,279,297.96
5. Step 5: Solve for x
   x = 12,279,297.96/3,820.45
6. Step 6: Final answer
   x = 3,214.10