Finding the Fourth Proportional to 1,770.42, 2,443.20 and 984.48

Step by Step Solution

1. Step 1: Write the proportion equation
   1,770.42 : 2,443.20 = 984.48 : x
2. Step 2: Convert to fraction form
   1,770.42/2,443.20 = 984.48/x
3. Step 3: Cross multiply
   1,770.42x = 2,443.20 × 984.48
4. Step 4: Simplify right side
   1,770.42x = 2,405,281.54
5. Step 5: Solve for x
   x = 2,405,281.54/1,770.42
6. Step 6: Final answer
   x = 1,358.59