Finding the Fourth Proportional to 1,151.58, 1,728.18 and 719.04

Step by Step Solution

1. Step 1: Write the proportion equation
   1,151.58 : 1,728.18 = 719.04 : x
2. Step 2: Convert to fraction form
   1,151.58/1,728.18 = 719.04/x
3. Step 3: Cross multiply
   1,151.58x = 1,728.18 × 719.04
4. Step 4: Simplify right side
   1,151.58x = 1,242,630.55
5. Step 5: Solve for x
   x = 1,242,630.55/1,151.58
6. Step 6: Final answer
   x = 1,079.07