Finding the Fourth Proportional to 1,019.80, 1,407.15 and 600.07

Step by Step Solution

1. Step 1: Write the proportion equation
   1,019.80 : 1,407.15 = 600.07 : x
2. Step 2: Convert to fraction form
   1,019.80/1,407.15 = 600.07/x
3. Step 3: Cross multiply
   1,019.80x = 1,407.15 × 600.07
4. Step 4: Simplify right side
   1,019.80x = 844,388.50
5. Step 5: Solve for x
   x = 844,388.50/1,019.80
6. Step 6: Final answer
   x = 827.99