Finding the Fourth Proportional to 2,433.72, 3,357.76 and 1,439.34

Step by Step Solution

1. Step 1: Write the proportion equation
   2,433.72 : 3,357.76 = 1,439.34 : x
2. Step 2: Convert to fraction form
   2,433.72/3,357.76 = 1,439.34/x
3. Step 3: Cross multiply
   2,433.72x = 3,357.76 × 1,439.34
4. Step 4: Simplify right side
   2,433.72x = 4,832,958.28
5. Step 5: Solve for x
   x = 4,832,958.28/2,433.72
6. Step 6: Final answer
   x = 1,985.83