Finding the Fourth Proportional to 1,279.18, 1,910.10 and 1,016.23

Step by Step Solution

1. Step 1: Write the proportion equation
   1,279.18 : 1,910.10 = 1,016.23 : x
2. Step 2: Convert to fraction form
   1,279.18/1,910.10 = 1,016.23/x
3. Step 3: Cross multiply
   1,279.18x = 1,910.10 × 1,016.23
4. Step 4: Simplify right side
   1,279.18x = 1,941,100.92
5. Step 5: Solve for x
   x = 1,941,100.92/1,279.18
6. Step 6: Final answer
   x = 1,517.46