Finding the Fourth Proportional to 1,483.57, 2,046.21 and 985.35

Step by Step Solution

1. Step 1: Write the proportion equation
   1,483.57 : 2,046.21 = 985.35 : x
2. Step 2: Convert to fraction form
   1,483.57/2,046.21 = 985.35/x
3. Step 3: Cross multiply
   1,483.57x = 2,046.21 × 985.35
4. Step 4: Simplify right side
   1,483.57x = 2,016,226.72
5. Step 5: Solve for x
   x = 2,016,226.72/1,483.57
6. Step 6: Final answer
   x = 1,359.04