Finding the Fourth Proportional to 2,344.42, 3,513.81 and 862.45

Step by Step Solution

1. Step 1: Write the proportion equation
   2,344.42 : 3,513.81 = 862.45 : x
2. Step 2: Convert to fraction form
   2,344.42/3,513.81 = 862.45/x
3. Step 3: Cross multiply
   2,344.42x = 3,513.81 × 862.45
4. Step 4: Simplify right side
   2,344.42x = 3,030,485.43
5. Step 5: Solve for x
   x = 3,030,485.43/2,344.42
6. Step 6: Final answer
   x = 1,292.64