Finding the Fourth Proportional to 3,462.49, 4,778.30 and 2,118.32

Step by Step Solution

1. Step 1: Write the proportion equation
   3,462.49 : 4,778.30 = 2,118.32 : x
2. Step 2: Convert to fraction form
   3,462.49/4,778.30 = 2,118.32/x
3. Step 3: Cross multiply
   3,462.49x = 4,778.30 × 2,118.32
4. Step 4: Simplify right side
   3,462.49x = 10,121,957.86
5. Step 5: Solve for x
   x = 10,121,957.86/3,462.49
6. Step 6: Final answer
   x = 2,923.32