Finding the Fourth Proportional to 1,802.85, 2,487.89 and 1,016.88

Step by Step Solution

1. Step 1: Write the proportion equation
   1,802.85 : 2,487.89 = 1,016.88 : x
2. Step 2: Convert to fraction form
   1,802.85/2,487.89 = 1,016.88/x
3. Step 3: Cross multiply
   1,802.85x = 2,487.89 × 1,016.88
4. Step 4: Simplify right side
   1,802.85x = 2,529,880.50
5. Step 5: Solve for x
   x = 2,529,880.50/1,802.85
6. Step 6: Final answer
   x = 1,403.27