Finding the Fourth Proportional to 1,771, 2,443.98 and 985.05

Step by Step Solution

1. Step 1: Write the proportion equation
   1,771 : 2,443.98 = 985.05 : x
2. Step 2: Convert to fraction form
   1,771/2,443.98 = 985.05/x
3. Step 3: Cross multiply
   1,771x = 2,443.98 × 985.05
4. Step 4: Simplify right side
   1,771x = 2,407,442.50
5. Step 5: Solve for x
   x = 2,407,442.50/1,771
6. Step 6: Final answer
   x = 1,359.37