Finding the Fourth Proportional to 3,528.96, 4,868.67 and 2,112.69

Step by Step Solution

1. Step 1: Write the proportion equation
   3,528.96 : 4,868.67 = 2,112.69 : x
2. Step 2: Convert to fraction form
   3,528.96/4,868.67 = 2,112.69/x
3. Step 3: Cross multiply
   3,528.96x = 4,868.67 × 2,112.69
4. Step 4: Simplify right side
   3,528.96x = 10,285,990.42
5. Step 5: Solve for x
   x = 10,285,990.42/3,528.96
6. Step 6: Final answer
   x = 2,914.74