Finding the Fourth Proportional to 2,076.94, 3,116.31 and 690.46

Step by Step Solution

1. Step 1: Write the proportion equation
   2,076.94 : 3,116.31 = 690.46 : x
2. Step 2: Convert to fraction form
   2,076.94/3,116.31 = 690.46/x
3. Step 3: Cross multiply
   2,076.94x = 3,116.31 × 690.46
4. Step 4: Simplify right side
   2,076.94x = 2,151,687.40
5. Step 5: Solve for x
   x = 2,151,687.40/2,076.94
6. Step 6: Final answer
   x = 1,035.99