Finding the Fourth Proportional to 1,868.09, 2,576.89 and 1,168.25

Step by Step Solution

1. Step 1: Write the proportion equation
   1,868.09 : 2,576.89 = 1,168.25 : x
2. Step 2: Convert to fraction form
   1,868.09/2,576.89 = 1,168.25/x
3. Step 3: Cross multiply
   1,868.09x = 2,576.89 × 1,168.25
4. Step 4: Simplify right side
   1,868.09x = 3,010,435.94
5. Step 5: Solve for x
   x = 3,010,435.94/1,868.09
6. Step 6: Final answer
   x = 1,611.51