Finding the Fourth Proportional to 1,050.61, 1,449.83 and 608.48

Step by Step Solution

1. Step 1: Write the proportion equation
   1,050.61 : 1,449.83 = 608.48 : x
2. Step 2: Convert to fraction form
   1,050.61/1,449.83 = 608.48/x
3. Step 3: Cross multiply
   1,050.61x = 1,449.83 × 608.48
4. Step 4: Simplify right side
   1,050.61x = 882,189.52
5. Step 5: Solve for x
   x = 882,189.52/1,050.61
6. Step 6: Final answer
   x = 839.70