Finding the Fourth Proportional to 2,883.72, 3,978.90 and 1,704.18

Step by Step Solution

1. Step 1: Write the proportion equation
   2,883.72 : 3,978.90 = 1,704.18 : x
2. Step 2: Convert to fraction form
   2,883.72/3,978.90 = 1,704.18/x
3. Step 3: Cross multiply
   2,883.72x = 3,978.90 × 1,704.18
4. Step 4: Simplify right side
   2,883.72x = 6,780,761.80
5. Step 5: Solve for x
   x = 6,780,761.80/2,883.72
6. Step 6: Final answer
   x = 2,351.39