Finding the Fourth Proportional to 1,508.88, 2,091.89 and 1,455.42

Step by Step Solution

1. Step 1: Write the proportion equation
   1,508.88 : 2,091.89 = 1,455.42 : x
2. Step 2: Convert to fraction form
   1,508.88/2,091.89 = 1,455.42/x
3. Step 3: Cross multiply
   1,508.88x = 2,091.89 × 1,455.42
4. Step 4: Simplify right side
   1,508.88x = 3,044,578.54
5. Step 5: Solve for x
   x = 3,044,578.54/1,508.88
6. Step 6: Final answer
   x = 2,017.77