Finding the Fourth Proportional to 2,175.94, 3,002.58 and 1,291.60

Step by Step Solution

1. Step 1: Write the proportion equation
   2,175.94 : 3,002.58 = 1,291.60 : x
2. Step 2: Convert to fraction form
   2,175.94/3,002.58 = 1,291.60/x
3. Step 3: Cross multiply
   2,175.94x = 3,002.58 × 1,291.60
4. Step 4: Simplify right side
   2,175.94x = 3,878,132.33
5. Step 5: Solve for x
   x = 3,878,132.33/2,175.94
6. Step 6: Final answer
   x = 1,782.28