Finding the Fourth Proportional to 2,800.83, 3,863.18 and 2,427.15

Step by Step Solution

1. Step 1: Write the proportion equation
   2,800.83 : 3,863.18 = 2,427.15 : x
2. Step 2: Convert to fraction form
   2,800.83/3,863.18 = 2,427.15/x
3. Step 3: Cross multiply
   2,800.83x = 3,863.18 × 2,427.15
4. Step 4: Simplify right side
   2,800.83x = 9,376,517.34
5. Step 5: Solve for x
   x = 9,376,517.34/2,800.83
6. Step 6: Final answer
   x = 3,347.76