Finding the Fourth Proportional to 1,436.82, 2,149.78 and 852.13

Step by Step Solution

1. Step 1: Write the proportion equation
   1,436.82 : 2,149.78 = 852.13 : x
2. Step 2: Convert to fraction form
   1,436.82/2,149.78 = 852.13/x
3. Step 3: Cross multiply
   1,436.82x = 2,149.78 × 852.13
4. Step 4: Simplify right side
   1,436.82x = 1,831,892.03
5. Step 5: Solve for x
   x = 1,831,892.03/1,436.82
6. Step 6: Final answer
   x = 1,274.96