Finding the Fourth Proportional to 1,833.80, 2,748.72 and 679.46

Step by Step Solution

1. Step 1: Write the proportion equation
   1,833.80 : 2,748.72 = 679.46 : x
2. Step 2: Convert to fraction form
   1,833.80/2,748.72 = 679.46/x
3. Step 3: Cross multiply
   1,833.80x = 2,748.72 × 679.46
4. Step 4: Simplify right side
   1,833.80x = 1,867,645.29
5. Step 5: Solve for x
   x = 1,867,645.29/1,833.80
6. Step 6: Final answer
   x = 1,018.46