Finding the Fourth Proportional to 1,818.49, 2,725.98 and 985.83

Step by Step Solution

1. Step 1: Write the proportion equation
   1,818.49 : 2,725.98 = 985.83 : x
2. Step 2: Convert to fraction form
   1,818.49/2,725.98 = 985.83/x
3. Step 3: Cross multiply
   1,818.49x = 2,725.98 × 985.83
4. Step 4: Simplify right side
   1,818.49x = 2,687,352.86
5. Step 5: Solve for x
   x = 2,687,352.86/1,818.49
6. Step 6: Final answer
   x = 1,477.79