Finding the Fourth Proportional to 2,175.62, 3,002.59 and 1,291.48

Step by Step Solution

1. Step 1: Write the proportion equation
   2,175.62 : 3,002.59 = 1,291.48 : x
2. Step 2: Convert to fraction form
   2,175.62/3,002.59 = 1,291.48/x
3. Step 3: Cross multiply
   2,175.62x = 3,002.59 × 1,291.48
4. Step 4: Simplify right side
   2,175.62x = 3,877,782.67
5. Step 5: Solve for x
   x = 3,877,782.67/2,175.62
6. Step 6: Final answer
   x = 1,782.38