Finding the Fourth Proportional to 1,173.42, 1,619.33 and 649.49

Step by Step Solution

1. Step 1: Write the proportion equation
   1,173.42 : 1,619.33 = 649.49 : x
2. Step 2: Convert to fraction form
   1,173.42/1,619.33 = 649.49/x
3. Step 3: Cross multiply
   1,173.42x = 1,619.33 × 649.49
4. Step 4: Simplify right side
   1,173.42x = 1,051,727.30
5. Step 5: Solve for x
   x = 1,051,727.30/1,173.42
6. Step 6: Final answer
   x = 896.29