Finding the Fourth Proportional to 2,173.53, 3,260.46 and 1,076.79

Step by Step Solution

1. Step 1: Write the proportion equation
   2,173.53 : 3,260.46 = 1,076.79 : x
2. Step 2: Convert to fraction form
   2,173.53/3,260.46 = 1,076.79/x
3. Step 3: Cross multiply
   2,173.53x = 3,260.46 × 1,076.79
4. Step 4: Simplify right side
   2,173.53x = 3,510,830.72
5. Step 5: Solve for x
   x = 3,510,830.72/2,173.53
6. Step 6: Final answer
   x = 1,615.27