Finding the Fourth Proportional to 1,802.71, 2,487.41 and 1,016.61

Step by Step Solution

1. Step 1: Write the proportion equation
   1,802.71 : 2,487.41 = 1,016.61 : x
2. Step 2: Convert to fraction form
   1,802.71/2,487.41 = 1,016.61/x
3. Step 3: Cross multiply
   1,802.71x = 2,487.41 × 1,016.61
4. Step 4: Simplify right side
   1,802.71x = 2,528,708.36
5. Step 5: Solve for x
   x = 2,528,708.36/1,802.71
6. Step 6: Final answer
   x = 1,402.73