Finding the Fourth Proportional to 1,802.42, 2,487.05 and 1,016.31

Step by Step Solution

1. Step 1: Write the proportion equation
   1,802.42 : 2,487.05 = 1,016.31 : x
2. Step 2: Convert to fraction form
   1,802.42/2,487.05 = 1,016.31/x
3. Step 3: Cross multiply
   1,802.42x = 2,487.05 × 1,016.31
4. Step 4: Simplify right side
   1,802.42x = 2,527,621.84
5. Step 5: Solve for x
   x = 2,527,621.84/1,802.42
6. Step 6: Final answer
   x = 1,402.35