Finding the Fourth Proportional to 1,770.40, 2,443.03 and 984.43

Step by Step Solution

1. Step 1: Write the proportion equation
   1,770.40 : 2,443.03 = 984.43 : x
2. Step 2: Convert to fraction form
   1,770.40/2,443.03 = 984.43/x
3. Step 3: Cross multiply
   1,770.40x = 2,443.03 × 984.43
4. Step 4: Simplify right side
   1,770.40x = 2,404,992.02
5. Step 5: Solve for x
   x = 2,404,992.02/1,770.40
6. Step 6: Final answer
   x = 1,358.45