Finding the Fourth Proportional to 2,109.96, 3,164.76 and 649.08

Step by Step Solution

1. Step 1: Write the proportion equation
   2,109.96 : 3,164.76 = 649.08 : x
2. Step 2: Convert to fraction form
   2,109.96/3,164.76 = 649.08/x
3. Step 3: Cross multiply
   2,109.96x = 3,164.76 × 649.08
4. Step 4: Simplify right side
   2,109.96x = 2,054,182.42
5. Step 5: Solve for x
   x = 2,054,182.42/2,109.96
6. Step 6: Final answer
   x = 973.56