Finding the Fourth Proportional to 1,511.46, 2,086.61 and 1,016.70

Step by Step Solution

1. Step 1: Write the proportion equation
   1,511.46 : 2,086.61 = 1,016.70 : x
2. Step 2: Convert to fraction form
   1,511.46/2,086.61 = 1,016.70/x
3. Step 3: Cross multiply
   1,511.46x = 2,086.61 × 1,016.70
4. Step 4: Simplify right side
   1,511.46x = 2,121,460.93
5. Step 5: Solve for x
   x = 2,121,460.93/1,511.46
6. Step 6: Final answer
   x = 1,403.58