Finding the Fourth Proportional to 1,074.52, 1,482.30 and 680.92

Step by Step Solution

1. Step 1: Write the proportion equation
   1,074.52 : 1,482.30 = 680.92 : x
2. Step 2: Convert to fraction form
   1,074.52/1,482.30 = 680.92/x
3. Step 3: Cross multiply
   1,074.52x = 1,482.30 × 680.92
4. Step 4: Simplify right side
   1,074.52x = 1,009,327.72
5. Step 5: Solve for x
   x = 1,009,327.72/1,074.52
6. Step 6: Final answer
   x = 939.33