Finding the Fourth Proportional to 1,770.73, 2,443.57 and 984.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,770.73 : 2,443.57 = 984.72 : x
2. Step 2: Convert to fraction form
   1,770.73/2,443.57 = 984.72/x
3. Step 3: Cross multiply
   1,770.73x = 2,443.57 × 984.72
4. Step 4: Simplify right side
   1,770.73x = 2,406,238.95
5. Step 5: Solve for x
   x = 2,406,238.95/1,770.73
6. Step 6: Final answer
   x = 1,358.90