Finding the Fourth Proportional to 1,074.91, 1,483.25 and 602.80

Step by Step Solution

1. Step 1: Write the proportion equation
   1,074.91 : 1,483.25 = 602.80 : x
2. Step 2: Convert to fraction form
   1,074.91/1,483.25 = 602.80/x
3. Step 3: Cross multiply
   1,074.91x = 1,483.25 × 602.80
4. Step 4: Simplify right side
   1,074.91x = 894,109.35
5. Step 5: Solve for x
   x = 894,109.35/1,074.91
6. Step 6: Final answer
   x = 831.80