Finding the Fourth Proportional to 1,060.96, 1,462.60 and 728.88

Step by Step Solution

1. Step 1: Write the proportion equation
   1,060.96 : 1,462.60 = 728.88 : x
2. Step 2: Convert to fraction form
   1,060.96/1,462.60 = 728.88/x
3. Step 3: Cross multiply
   1,060.96x = 1,462.60 × 728.88
4. Step 4: Simplify right side
   1,060.96x = 1,066,059.89
5. Step 5: Solve for x
   x = 1,066,059.89/1,060.96
6. Step 6: Final answer
   x = 1,004.81