Finding the Fourth Proportional to 1,511.96, 2,086.57 and 952.21

Step by Step Solution

1. Step 1: Write the proportion equation
   1,511.96 : 2,086.57 = 952.21 : x
2. Step 2: Convert to fraction form
   1,511.96/2,086.57 = 952.21/x
3. Step 3: Cross multiply
   1,511.96x = 2,086.57 × 952.21
4. Step 4: Simplify right side
   1,511.96x = 1,986,852.82
5. Step 5: Solve for x
   x = 1,986,852.82/1,511.96
6. Step 6: Final answer
   x = 1,314.09