Finding the Fourth Proportional to 2,443.52, 3,666.12 and 712.40

Step by Step Solution

1. Step 1: Write the proportion equation
   2,443.52 : 3,666.12 = 712.40 : x
2. Step 2: Convert to fraction form
   2,443.52/3,666.12 = 712.40/x
3. Step 3: Cross multiply
   2,443.52x = 3,666.12 × 712.40
4. Step 4: Simplify right side
   2,443.52x = 2,611,743.89
5. Step 5: Solve for x
   x = 2,611,743.89/2,443.52
6. Step 6: Final answer
   x = 1,068.84