Finding the Fourth Proportional to 2,016.63, 2,781.10 and 1,307.73

Step by Step Solution

1. Step 1: Write the proportion equation
   2,016.63 : 2,781.10 = 1,307.73 : x
2. Step 2: Convert to fraction form
   2,016.63/2,781.10 = 1,307.73/x
3. Step 3: Cross multiply
   2,016.63x = 2,781.10 × 1,307.73
4. Step 4: Simplify right side
   2,016.63x = 3,636,939.97
5. Step 5: Solve for x
   x = 3,636,939.97/2,016.63
6. Step 6: Final answer
   x = 1,803.47