Finding the Fourth Proportional to 1,100.20, 1,518.27 and 602.84

Step by Step Solution

1. Step 1: Write the proportion equation
   1,100.20 : 1,518.27 = 602.84 : x
2. Step 2: Convert to fraction form
   1,100.20/1,518.27 = 602.84/x
3. Step 3: Cross multiply
   1,100.20x = 1,518.27 × 602.84
4. Step 4: Simplify right side
   1,100.20x = 915,273.89
5. Step 5: Solve for x
   x = 915,273.89/1,100.20
6. Step 6: Final answer
   x = 831.92