Finding the Fourth Proportional to 2,443.84, 3,665.68 and 712.48

Step by Step Solution

1. Step 1: Write the proportion equation
   2,443.84 : 3,665.68 = 712.48 : x
2. Step 2: Convert to fraction form
   2,443.84/3,665.68 = 712.48/x
3. Step 3: Cross multiply
   2,443.84x = 3,665.68 × 712.48
4. Step 4: Simplify right side
   2,443.84x = 2,611,723.69
5. Step 5: Solve for x
   x = 2,611,723.69/2,443.84
6. Step 6: Final answer
   x = 1,068.70