Finding the Fourth Proportional to 1,342.46, 1,852.53 and 818.39

Step by Step Solution

1. Step 1: Write the proportion equation
   1,342.46 : 1,852.53 = 818.39 : x
2. Step 2: Convert to fraction form
   1,342.46/1,852.53 = 818.39/x
3. Step 3: Cross multiply
   1,342.46x = 1,852.53 × 818.39
4. Step 4: Simplify right side
   1,342.46x = 1,516,092.03
5. Step 5: Solve for x
   x = 1,516,092.03/1,342.46
6. Step 6: Final answer
   x = 1,129.34