Finding the Fourth Proportional to 1,308.06, 1,962.06 and 649.86

Step by Step Solution

1. Step 1: Write the proportion equation
   1,308.06 : 1,962.06 = 649.86 : x
2. Step 2: Convert to fraction form
   1,308.06/1,962.06 = 649.86/x
3. Step 3: Cross multiply
   1,308.06x = 1,962.06 × 649.86
4. Step 4: Simplify right side
   1,308.06x = 1,275,064.31
5. Step 5: Solve for x
   x = 1,275,064.31/1,308.06
6. Step 6: Final answer
   x = 974.78