Finding the Fourth Proportional to 1,342.50, 1,852.68 and 818.82

Step by Step Solution

1. Step 1: Write the proportion equation
   1,342.50 : 1,852.68 = 818.82 : x
2. Step 2: Convert to fraction form
   1,342.50/1,852.68 = 818.82/x
3. Step 3: Cross multiply
   1,342.50x = 1,852.68 × 818.82
4. Step 4: Simplify right side
   1,342.50x = 1,517,011.44
5. Step 5: Solve for x
   x = 1,517,011.44/1,342.50
6. Step 6: Final answer
   x = 1,129.99