Finding the Fourth Proportional to 1,342.54, 1,852.72 and 811.46

Step by Step Solution

1. Step 1: Write the proportion equation
   1,342.54 : 1,852.72 = 811.46 : x
2. Step 2: Convert to fraction form
   1,342.54/1,852.72 = 811.46/x
3. Step 3: Cross multiply
   1,342.54x = 1,852.72 × 811.46
4. Step 4: Simplify right side
   1,342.54x = 1,503,408.17
5. Step 5: Solve for x
   x = 1,503,408.17/1,342.54
6. Step 6: Final answer
   x = 1,119.82