Finding the Fourth Proportional to 1,802.79, 2,488.01 and 1,016.99

Step by Step Solution

1. Step 1: Write the proportion equation
   1,802.79 : 2,488.01 = 1,016.99 : x
2. Step 2: Convert to fraction form
   1,802.79/2,488.01 = 1,016.99/x
3. Step 3: Cross multiply
   1,802.79x = 2,488.01 × 1,016.99
4. Step 4: Simplify right side
   1,802.79x = 2,530,281.29
5. Step 5: Solve for x
   x = 2,530,281.29/1,802.79
6. Step 6: Final answer
   x = 1,403.54