Finding the Fourth Proportional to 2,020.42, 3,030.60 and 559.46

Step by Step Solution

1. Step 1: Write the proportion equation
   2,020.42 : 3,030.60 = 559.46 : x
2. Step 2: Convert to fraction form
   2,020.42/3,030.60 = 559.46/x
3. Step 3: Cross multiply
   2,020.42x = 3,030.60 × 559.46
4. Step 4: Simplify right side
   2,020.42x = 1,695,499.48
5. Step 5: Solve for x
   x = 1,695,499.48/2,020.42
6. Step 6: Final answer
   x = 839.18