Finding the Fourth Proportional to 2,443.77, 3,665.75 and 712.39

Step by Step Solution

1. Step 1: Write the proportion equation
   2,443.77 : 3,665.75 = 712.39 : x
2. Step 2: Convert to fraction form
   2,443.77/3,665.75 = 712.39/x
3. Step 3: Cross multiply
   2,443.77x = 3,665.75 × 712.39
4. Step 4: Simplify right side
   2,443.77x = 2,611,443.64
5. Step 5: Solve for x
   x = 2,611,443.64/2,443.77
6. Step 6: Final answer
   x = 1,068.61