Finding the Fourth Proportional to 2,443.64, 3,666.06 and 712.28

Step by Step Solution

1. Step 1: Write the proportion equation
   2,443.64 : 3,666.06 = 712.28 : x
2. Step 2: Convert to fraction form
   2,443.64/3,666.06 = 712.28/x
3. Step 3: Cross multiply
   2,443.64x = 3,666.06 × 712.28
4. Step 4: Simplify right side
   2,443.64x = 2,611,261.22
5. Step 5: Solve for x
   x = 2,611,261.22/2,443.64
6. Step 6: Final answer
   x = 1,068.59