Finding the Fourth Proportional to 1,802.51, 2,487.37 and 1,016.51

Step by Step Solution

1. Step 1: Write the proportion equation
   1,802.51 : 2,487.37 = 1,016.51 : x
2. Step 2: Convert to fraction form
   1,802.51/2,487.37 = 1,016.51/x
3. Step 3: Cross multiply
   1,802.51x = 2,487.37 × 1,016.51
4. Step 4: Simplify right side
   1,802.51x = 2,528,427.54
5. Step 5: Solve for x
   x = 2,528,427.54/1,802.51
6. Step 6: Final answer
   x = 1,402.72