Finding the Fourth Proportional to 2,730.57, 3,768.18 and 1,488.57

Step by Step Solution

1. Step 1: Write the proportion equation
   2,730.57 : 3,768.18 = 1,488.57 : x
2. Step 2: Convert to fraction form
   2,730.57/3,768.18 = 1,488.57/x
3. Step 3: Cross multiply
   2,730.57x = 3,768.18 × 1,488.57
4. Step 4: Simplify right side
   2,730.57x = 5,609,199.70
5. Step 5: Solve for x
   x = 5,609,199.70/2,730.57
6. Step 6: Final answer
   x = 2,054.22