Finding the Fourth Proportional to 1,770.69, 2,443.70 and 984.89

Step by Step Solution

1. Step 1: Write the proportion equation
   1,770.69 : 2,443.70 = 984.89 : x
2. Step 2: Convert to fraction form
   1,770.69/2,443.70 = 984.89/x
3. Step 3: Cross multiply
   1,770.69x = 2,443.70 × 984.89
4. Step 4: Simplify right side
   1,770.69x = 2,406,763.47
5. Step 5: Solve for x
   x = 2,406,763.47/1,770.69
6. Step 6: Final answer
   x = 1,359.22