Finding the Fourth Proportional to 1,074.72, 1,482.84 and 608.94

Step by Step Solution

1. Step 1: Write the proportion equation
   1,074.72 : 1,482.84 = 608.94 : x
2. Step 2: Convert to fraction form
   1,074.72/1,482.84 = 608.94/x
3. Step 3: Cross multiply
   1,074.72x = 1,482.84 × 608.94
4. Step 4: Simplify right side
   1,074.72x = 902,960.59
5. Step 5: Solve for x
   x = 902,960.59/1,074.72
6. Step 6: Final answer
   x = 840.18