Finding the Fourth Proportional to 1,770.77, 2,443.74 and 984.89

Step by Step Solution

1. Step 1: Write the proportion equation
   1,770.77 : 2,443.74 = 984.89 : x
2. Step 2: Convert to fraction form
   1,770.77/2,443.74 = 984.89/x
3. Step 3: Cross multiply
   1,770.77x = 2,443.74 × 984.89
4. Step 4: Simplify right side
   1,770.77x = 2,406,815.09
5. Step 5: Solve for x
   x = 2,406,815.09/1,770.77
6. Step 6: Final answer
   x = 1,359.19