Finding the Fourth Proportional to 1,511.61, 2,086.04 and 848.51

Step by Step Solution

1. Step 1: Write the proportion equation
   1,511.61 : 2,086.04 = 848.51 : x
2. Step 2: Convert to fraction form
   1,511.61/2,086.04 = 848.51/x
3. Step 3: Cross multiply
   1,511.61x = 2,086.04 × 848.51
4. Step 4: Simplify right side
   1,511.61x = 1,770,025.80
5. Step 5: Solve for x
   x = 1,770,025.80/1,511.61
6. Step 6: Final answer
   x = 1,170.95