Finding the Fourth Proportional to 2,784.71, 4,178.43 and 1,968.23

Step by Step Solution

1. Step 1: Write the proportion equation
   2,784.71 : 4,178.43 = 1,968.23 : x
2. Step 2: Convert to fraction form
   2,784.71/4,178.43 = 1,968.23/x
3. Step 3: Cross multiply
   2,784.71x = 4,178.43 × 1,968.23
4. Step 4: Simplify right side
   2,784.71x = 8,224,121.72
5. Step 5: Solve for x
   x = 8,224,121.72/2,784.71
6. Step 6: Final answer
   x = 2,953.31