Finding the Fourth Proportional to 1,185.73, 1,777.42 and 1,020.62

Step by Step Solution

1. Step 1: Write the proportion equation
   1,185.73 : 1,777.42 = 1,020.62 : x
2. Step 2: Convert to fraction form
   1,185.73/1,777.42 = 1,020.62/x
3. Step 3: Cross multiply
   1,185.73x = 1,777.42 × 1,020.62
4. Step 4: Simplify right side
   1,185.73x = 1,814,070.40
5. Step 5: Solve for x
   x = 1,814,070.40/1,185.73
6. Step 6: Final answer
   x = 1,529.92