Finding the Fourth Proportional to 1,641.72, 2,266.46 and 1,304.96

Step by Step Solution

1. Step 1: Write the proportion equation
   1,641.72 : 2,266.46 = 1,304.96 : x
2. Step 2: Convert to fraction form
   1,641.72/2,266.46 = 1,304.96/x
3. Step 3: Cross multiply
   1,641.72x = 2,266.46 × 1,304.96
4. Step 4: Simplify right side
   1,641.72x = 2,957,621.78
5. Step 5: Solve for x
   x = 2,957,621.78/1,641.72
6. Step 6: Final answer
   x = 1,801.54