Finding the Fourth Proportional to 2,730.72, 4,097.55 and 1,087.29

Step by Step Solution

1. Step 1: Write the proportion equation
   2,730.72 : 4,097.55 = 1,087.29 : x
2. Step 2: Convert to fraction form
   2,730.72/4,097.55 = 1,087.29/x
3. Step 3: Cross multiply
   2,730.72x = 4,097.55 × 1,087.29
4. Step 4: Simplify right side
   2,730.72x = 4,455,225.14
5. Step 5: Solve for x
   x = 4,455,225.14/2,730.72
6. Step 6: Final answer
   x = 1,631.52