Finding the Fourth Proportional to 1,678.27, 2,518.23 and 754.48

Step by Step Solution

1. Step 1: Write the proportion equation
   1,678.27 : 2,518.23 = 754.48 : x
2. Step 2: Convert to fraction form
   1,678.27/2,518.23 = 754.48/x
3. Step 3: Cross multiply
   1,678.27x = 2,518.23 × 754.48
4. Step 4: Simplify right side
   1,678.27x = 1,899,954.17
5. Step 5: Solve for x
   x = 1,899,954.17/1,678.27
6. Step 6: Final answer
   x = 1,132.09