Finding the Fourth Proportional to 2,488.29, 3,432.41 and 1,555.17

Step by Step Solution

1. Step 1: Write the proportion equation
   2,488.29 : 3,432.41 = 1,555.17 : x
2. Step 2: Convert to fraction form
   2,488.29/3,432.41 = 1,555.17/x
3. Step 3: Cross multiply
   2,488.29x = 3,432.41 × 1,555.17
4. Step 4: Simplify right side
   2,488.29x = 5,337,994.30
5. Step 5: Solve for x
   x = 5,337,994.30/2,488.29
6. Step 6: Final answer
   x = 2,145.24