Finding the Fourth Proportional to 1,511.42, 2,085.81 and 848.39

Step by Step Solution

1. Step 1: Write the proportion equation
   1,511.42 : 2,085.81 = 848.39 : x
2. Step 2: Convert to fraction form
   1,511.42/2,085.81 = 848.39/x
3. Step 3: Cross multiply
   1,511.42x = 2,085.81 × 848.39
4. Step 4: Simplify right side
   1,511.42x = 1,769,580.35
5. Step 5: Solve for x
   x = 1,769,580.35/1,511.42
6. Step 6: Final answer
   x = 1,170.81