Finding the Fourth Proportional to 3,840.83, 5,300.15 and 2,162.18

Step by Step Solution

1. Step 1: Write the proportion equation
   3,840.83 : 5,300.15 = 2,162.18 : x
2. Step 2: Convert to fraction form
   3,840.83/5,300.15 = 2,162.18/x
3. Step 3: Cross multiply
   3,840.83x = 5,300.15 × 2,162.18
4. Step 4: Simplify right side
   3,840.83x = 11,459,880.77
5. Step 5: Solve for x
   x = 11,459,880.77/3,840.83
6. Step 6: Final answer
   x = 2,983.70