Finding the Fourth Proportional to 2,618.84, 3,927.72 and 769.46

Step by Step Solution

1. Step 1: Write the proportion equation
   2,618.84 : 3,927.72 = 769.46 : x
2. Step 2: Convert to fraction form
   2,618.84/3,927.72 = 769.46/x
3. Step 3: Cross multiply
   2,618.84x = 3,927.72 × 769.46
4. Step 4: Simplify right side
   2,618.84x = 3,022,223.43
5. Step 5: Solve for x
   x = 3,022,223.43/2,618.84
6. Step 6: Final answer
   x = 1,154.03