Finding the Fourth Proportional to 1,738.24, 2,606.72 and 712.32

Step by Step Solution

1. Step 1: Write the proportion equation
   1,738.24 : 2,606.72 = 712.32 : x
2. Step 2: Convert to fraction form
   1,738.24/2,606.72 = 712.32/x
3. Step 3: Cross multiply
   1,738.24x = 2,606.72 × 712.32
4. Step 4: Simplify right side
   1,738.24x = 1,856,818.79
5. Step 5: Solve for x
   x = 1,856,818.79/1,738.24
6. Step 6: Final answer
   x = 1,068.22