Finding the Fourth Proportional to 2,730.72, 4,096.80 and 1,064.88

Step by Step Solution

1. Step 1: Write the proportion equation
   2,730.72 : 4,096.80 = 1,064.88 : x
2. Step 2: Convert to fraction form
   2,730.72/4,096.80 = 1,064.88/x
3. Step 3: Cross multiply
   2,730.72x = 4,096.80 × 1,064.88
4. Step 4: Simplify right side
   2,730.72x = 4,362,600.38
5. Step 5: Solve for x
   x = 4,362,600.38/2,730.72
6. Step 6: Final answer
   x = 1,597.60