Finding the Fourth Proportional to 2,300.76, 3,175 and 1,252.80

Step by Step Solution

1. Step 1: Write the proportion equation
   2,300.76 : 3,175 = 1,252.80 : x
2. Step 2: Convert to fraction form
   2,300.76/3,175 = 1,252.80/x
3. Step 3: Cross multiply
   2,300.76x = 3,175 × 1,252.80
4. Step 4: Simplify right side
   2,300.76x = 3,977,640
5. Step 5: Solve for x
   x = 3,977,640/2,300.76
6. Step 6: Final answer
   x = 1,728.84