Finding the Fourth Proportional to 1,099.83, 1,517.76 and 602.47

Step by Step Solution

1. Step 1: Write the proportion equation
   1,099.83 : 1,517.76 = 602.47 : x
2. Step 2: Convert to fraction form
   1,099.83/1,517.76 = 602.47/x
3. Step 3: Cross multiply
   1,099.83x = 1,517.76 × 602.47
4. Step 4: Simplify right side
   1,099.83x = 914,405.26
5. Step 5: Solve for x
   x = 914,405.26/1,099.83
6. Step 6: Final answer
   x = 831.41