Finding the Fourth Proportional to 2,769.92, 4,156.71 and 1,309.17

Step by Step Solution

1. Step 1: Write the proportion equation
   2,769.92 : 4,156.71 = 1,309.17 : x
2. Step 2: Convert to fraction form
   2,769.92/4,156.71 = 1,309.17/x
3. Step 3: Cross multiply
   2,769.92x = 4,156.71 × 1,309.17
4. Step 4: Simplify right side
   2,769.92x = 5,441,840.03
5. Step 5: Solve for x
   x = 5,441,840.03/2,769.92
6. Step 6: Final answer
   x = 1,964.62