Finding the Fourth Proportional to 2,175.34, 3,001.54 and 1,290.82

Step by Step Solution

1. Step 1: Write the proportion equation
   2,175.34 : 3,001.54 = 1,290.82 : x
2. Step 2: Convert to fraction form
   2,175.34/3,001.54 = 1,290.82/x
3. Step 3: Cross multiply
   2,175.34x = 3,001.54 × 1,290.82
4. Step 4: Simplify right side
   2,175.34x = 3,874,447.86
5. Step 5: Solve for x
   x = 3,874,447.86/2,175.34
6. Step 6: Final answer
   x = 1,781.08