Finding the Fourth Proportional to 1,481.76, 2,045.86 and 985.43

Step by Step Solution

1. Step 1: Write the proportion equation
   1,481.76 : 2,045.86 = 985.43 : x
2. Step 2: Convert to fraction form
   1,481.76/2,045.86 = 985.43/x
3. Step 3: Cross multiply
   1,481.76x = 2,045.86 × 985.43
4. Step 4: Simplify right side
   1,481.76x = 2,016,054.47
5. Step 5: Solve for x
   x = 2,016,054.47/1,481.76
6. Step 6: Final answer
   x = 1,360.58