Finding the Fourth Proportional to 1,511.33, 2,085.35 and 873.18

Step by Step Solution

1. Step 1: Write the proportion equation
   1,511.33 : 2,085.35 = 873.18 : x
2. Step 2: Convert to fraction form
   1,511.33/2,085.35 = 873.18/x
3. Step 3: Cross multiply
   1,511.33x = 2,085.35 × 873.18
4. Step 4: Simplify right side
   1,511.33x = 1,820,881.55
5. Step 5: Solve for x
   x = 1,820,881.55/1,511.33
6. Step 6: Final answer
   x = 1,204.82