Finding the Fourth Proportional to 1,770.37, 2,443.11 and 984.57

Step by Step Solution

1. Step 1: Write the proportion equation
   1,770.37 : 2,443.11 = 984.57 : x
2. Step 2: Convert to fraction form
   1,770.37/2,443.11 = 984.57/x
3. Step 3: Cross multiply
   1,770.37x = 2,443.11 × 984.57
4. Step 4: Simplify right side
   1,770.37x = 2,405,404.88
5. Step 5: Solve for x
   x = 2,405,404.88/1,770.37
6. Step 6: Final answer
   x = 1,358.70