Finding the Fourth Proportional to 1,192.98, 1,789.53 and 452.52

Step by Step Solution

1. Step 1: Write the proportion equation
   1,192.98 : 1,789.53 = 452.52 : x
2. Step 2: Convert to fraction form
   1,192.98/1,789.53 = 452.52/x
3. Step 3: Cross multiply
   1,192.98x = 1,789.53 × 452.52
4. Step 4: Simplify right side
   1,192.98x = 809,796.42
5. Step 5: Solve for x
   x = 809,796.42/1,192.98
6. Step 6: Final answer
   x = 678.80