Finding the Fourth Proportional to 1,050.54, 1,449.89 and 608.59

Step by Step Solution

1. Step 1: Write the proportion equation
   1,050.54 : 1,449.89 = 608.59 : x
2. Step 2: Convert to fraction form
   1,050.54/1,449.89 = 608.59/x
3. Step 3: Cross multiply
   1,050.54x = 1,449.89 × 608.59
4. Step 4: Simplify right side
   1,050.54x = 882,388.56
5. Step 5: Solve for x
   x = 882,388.56/1,050.54
6. Step 6: Final answer
   x = 839.94