Finding the Fourth Proportional to 1,064.72, 1,598.16 and 716.96

Step by Step Solution

1. Step 1: Write the proportion equation
   1,064.72 : 1,598.16 = 716.96 : x
2. Step 2: Convert to fraction form
   1,064.72/1,598.16 = 716.96/x
3. Step 3: Cross multiply
   1,064.72x = 1,598.16 × 716.96
4. Step 4: Simplify right side
   1,064.72x = 1,145,816.79
5. Step 5: Solve for x
   x = 1,145,816.79/1,064.72
6. Step 6: Final answer
   x = 1,076.17