Finding the Fourth Proportional to 1,864.42, 2,796.72 and 768.94

Step by Step Solution

1. Step 1: Write the proportion equation
   1,864.42 : 2,796.72 = 768.94 : x
2. Step 2: Convert to fraction form
   1,864.42/2,796.72 = 768.94/x
3. Step 3: Cross multiply
   1,864.42x = 2,796.72 × 768.94
4. Step 4: Simplify right side
   1,864.42x = 2,150,509.88
5. Step 5: Solve for x
   x = 2,150,509.88/1,864.42
6. Step 6: Final answer
   x = 1,153.45