Finding the Fourth Proportional to 2,175.12, 3,001.61 and 1,180.38

Step by Step Solution

1. Step 1: Write the proportion equation
   2,175.12 : 3,001.61 = 1,180.38 : x
2. Step 2: Convert to fraction form
   2,175.12/3,001.61 = 1,180.38/x
3. Step 3: Cross multiply
   2,175.12x = 3,001.61 × 1,180.38
4. Step 4: Simplify right side
   2,175.12x = 3,543,040.41
5. Step 5: Solve for x
   x = 3,543,040.41/2,175.12
6. Step 6: Final answer
   x = 1,628.89