Finding the Fourth Proportional to 1,511.60, 2,086.16 and 848.45

Step by Step Solution

1. Step 1: Write the proportion equation
   1,511.60 : 2,086.16 = 848.45 : x
2. Step 2: Convert to fraction form
   1,511.60/2,086.16 = 848.45/x
3. Step 3: Cross multiply
   1,511.60x = 2,086.16 × 848.45
4. Step 4: Simplify right side
   1,511.60x = 1,770,002.45
5. Step 5: Solve for x
   x = 1,770,002.45/1,511.60
6. Step 6: Final answer
   x = 1,170.95