Finding the Fourth Proportional to 1,050.34, 1,449.72 and 608.49

Step by Step Solution

1. Step 1: Write the proportion equation
   1,050.34 : 1,449.72 = 608.49 : x
2. Step 2: Convert to fraction form
   1,050.34/1,449.72 = 608.49/x
3. Step 3: Cross multiply
   1,050.34x = 1,449.72 × 608.49
4. Step 4: Simplify right side
   1,050.34x = 882,136.50
5. Step 5: Solve for x
   x = 882,136.50/1,050.34
6. Step 6: Final answer
   x = 839.86