Finding the Fourth Proportional to 1,678.24, 2,314.83 and 1,013.94

Step by Step Solution

1. Step 1: Write the proportion equation
   1,678.24 : 2,314.83 = 1,013.94 : x
2. Step 2: Convert to fraction form
   1,678.24/2,314.83 = 1,013.94/x
3. Step 3: Cross multiply
   1,678.24x = 2,314.83 × 1,013.94
4. Step 4: Simplify right side
   1,678.24x = 2,347,098.73
5. Step 5: Solve for x
   x = 2,347,098.73/1,678.24
6. Step 6: Final answer
   x = 1,398.55