Finding the Fourth Proportional to 2,488.94, 3,433.31 and 1,555.82

Step by Step Solution

1. Step 1: Write the proportion equation
   2,488.94 : 3,433.31 = 1,555.82 : x
2. Step 2: Convert to fraction form
   2,488.94/3,433.31 = 1,555.82/x
3. Step 3: Cross multiply
   2,488.94x = 3,433.31 × 1,555.82
4. Step 4: Simplify right side
   2,488.94x = 5,341,600.29
5. Step 5: Solve for x
   x = 5,341,600.29/2,488.94
6. Step 6: Final answer
   x = 2,146.14