Finding the Fourth Proportional to 2,175.68, 3,002.25 and 1,291.34

Step by Step Solution

1. Step 1: Write the proportion equation
   2,175.68 : 3,002.25 = 1,291.34 : x
2. Step 2: Convert to fraction form
   2,175.68/3,002.25 = 1,291.34/x
3. Step 3: Cross multiply
   2,175.68x = 3,002.25 × 1,291.34
4. Step 4: Simplify right side
   2,175.68x = 3,876,925.52
5. Step 5: Solve for x
   x = 3,876,925.52/2,175.68
6. Step 6: Final answer
   x = 1,781.94