Finding the Fourth Proportional to 1,963.91, 2,946.72 and 731.05

Step by Step Solution

1. Step 1: Write the proportion equation
   1,963.91 : 2,946.72 = 731.05 : x
2. Step 2: Convert to fraction form
   1,963.91/2,946.72 = 731.05/x
3. Step 3: Cross multiply
   1,963.91x = 2,946.72 × 731.05
4. Step 4: Simplify right side
   1,963.91x = 2,154,199.66
5. Step 5: Solve for x
   x = 2,154,199.66/1,963.91
6. Step 6: Final answer
   x = 1,096.89