Finding the Fourth Proportional to 3,922.16, 5,870.76 and 2,186.48

Step by Step Solution

1. Step 1: Write the proportion equation
   3,922.16 : 5,870.76 = 2,186.48 : x
2. Step 2: Convert to fraction form
   3,922.16/5,870.76 = 2,186.48/x
3. Step 3: Cross multiply
   3,922.16x = 5,870.76 × 2,186.48
4. Step 4: Simplify right side
   3,922.16x = 12,836,299.32
5. Step 5: Solve for x
   x = 12,836,299.32/3,922.16
6. Step 6: Final answer
   x = 3,272.76