Finding the Fourth Proportional to 1,802.96, 2,488.20 and 1,016.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,802.96 : 2,488.20 = 1,016.72 : x
2. Step 2: Convert to fraction form
   1,802.96/2,488.20 = 1,016.72/x
3. Step 3: Cross multiply
   1,802.96x = 2,488.20 × 1,016.72
4. Step 4: Simplify right side
   1,802.96x = 2,529,802.70
5. Step 5: Solve for x
   x = 2,529,802.70/1,802.96
6. Step 6: Final answer
   x = 1,403.14