Finding the Fourth Proportional to 1,099.73, 1,517.59 and 602.34

Step by Step Solution

1. Step 1: Write the proportion equation
   1,099.73 : 1,517.59 = 602.34 : x
2. Step 2: Convert to fraction form
   1,099.73/1,517.59 = 602.34/x
3. Step 3: Cross multiply
   1,099.73x = 1,517.59 × 602.34
4. Step 4: Simplify right side
   1,099.73x = 914,096.83
5. Step 5: Solve for x
   x = 914,096.83/1,099.73
6. Step 6: Final answer
   x = 831.20