Finding the Fourth Proportional to 2,412.95, 3,619.83 and 769.37

Step by Step Solution

1. Step 1: Write the proportion equation
   2,412.95 : 3,619.83 = 769.37 : x
2. Step 2: Convert to fraction form
   2,412.95/3,619.83 = 769.37/x
3. Step 3: Cross multiply
   2,412.95x = 3,619.83 × 769.37
4. Step 4: Simplify right side
   2,412.95x = 2,784,988.61
5. Step 5: Solve for x
   x = 2,784,988.61/2,412.95
6. Step 6: Final answer
   x = 1,154.18