Finding the Fourth Proportional to 1,770.86, 2,443.74 and 984.98

Step by Step Solution

1. Step 1: Write the proportion equation
   1,770.86 : 2,443.74 = 984.98 : x
2. Step 2: Convert to fraction form
   1,770.86/2,443.74 = 984.98/x
3. Step 3: Cross multiply
   1,770.86x = 2,443.74 × 984.98
4. Step 4: Simplify right side
   1,770.86x = 2,407,035.03
5. Step 5: Solve for x
   x = 2,407,035.03/1,770.86
6. Step 6: Final answer
   x = 1,359.25