Finding the Fourth Proportional to 1,100.14, 1,518.16 and 602.78

Step by Step Solution

1. Step 1: Write the proportion equation
   1,100.14 : 1,518.16 = 602.78 : x
2. Step 2: Convert to fraction form
   1,100.14/1,518.16 = 602.78/x
3. Step 3: Cross multiply
   1,100.14x = 1,518.16 × 602.78
4. Step 4: Simplify right side
   1,100.14x = 915,116.48
5. Step 5: Solve for x
   x = 915,116.48/1,100.14
6. Step 6: Final answer
   x = 831.82