Finding the Fourth Proportional to 2,233.62, 3,346.78 and 2,148.30

Step by Step Solution

1. Step 1: Write the proportion equation
   2,233.62 : 3,346.78 = 2,148.30 : x
2. Step 2: Convert to fraction form
   2,233.62/3,346.78 = 2,148.30/x
3. Step 3: Cross multiply
   2,233.62x = 3,346.78 × 2,148.30
4. Step 4: Simplify right side
   2,233.62x = 7,189,865.37
5. Step 5: Solve for x
   x = 7,189,865.37/2,233.62
6. Step 6: Final answer
   x = 3,218.94