Finding the Fourth Proportional to 1,343.27, 1,852.72 and 1,284.39

Step by Step Solution

1. Step 1: Write the proportion equation
   1,343.27 : 1,852.72 = 1,284.39 : x
2. Step 2: Convert to fraction form
   1,343.27/1,852.72 = 1,284.39/x
3. Step 3: Cross multiply
   1,343.27x = 1,852.72 × 1,284.39
4. Step 4: Simplify right side
   1,343.27x = 2,379,611.83
5. Step 5: Solve for x
   x = 2,379,611.83/1,343.27
6. Step 6: Final answer
   x = 1,771.50