Finding the Fourth Proportional to 1,770.46, 2,443.30 and 984.56

Step by Step Solution

1. Step 1: Write the proportion equation
   1,770.46 : 2,443.30 = 984.56 : x
2. Step 2: Convert to fraction form
   1,770.46/2,443.30 = 984.56/x
3. Step 3: Cross multiply
   1,770.46x = 2,443.30 × 984.56
4. Step 4: Simplify right side
   1,770.46x = 2,405,560.77
5. Step 5: Solve for x
   x = 2,405,560.77/1,770.46
6. Step 6: Final answer
   x = 1,358.72