Finding the Fourth Proportional to 1,511.82, 2,086.32 and 848.70

Step by Step Solution

1. Step 1: Write the proportion equation
   1,511.82 : 2,086.32 = 848.70 : x
2. Step 2: Convert to fraction form
   1,511.82/2,086.32 = 848.70/x
3. Step 3: Cross multiply
   1,511.82x = 2,086.32 × 848.70
4. Step 4: Simplify right side
   1,511.82x = 1,770,659.78
5. Step 5: Solve for x
   x = 1,770,659.78/1,511.82
6. Step 6: Final answer
   x = 1,171.21