Finding the Fourth Proportional to 1,511.30, 2,085.54 and 848.10

Step by Step Solution

1. Step 1: Write the proportion equation
   1,511.30 : 2,085.54 = 848.10 : x
2. Step 2: Convert to fraction form
   1,511.30/2,085.54 = 848.10/x
3. Step 3: Cross multiply
   1,511.30x = 2,085.54 × 848.10
4. Step 4: Simplify right side
   1,511.30x = 1,768,746.47
5. Step 5: Solve for x
   x = 1,768,746.47/1,511.30
6. Step 6: Final answer
   x = 1,170.35