Finding the Fourth Proportional to 2,300.12, 3,174.20 and 1,252.20

Step by Step Solution

1. Step 1: Write the proportion equation
   2,300.12 : 3,174.20 = 1,252.20 : x
2. Step 2: Convert to fraction form
   2,300.12/3,174.20 = 1,252.20/x
3. Step 3: Cross multiply
   2,300.12x = 3,174.20 × 1,252.20
4. Step 4: Simplify right side
   2,300.12x = 3,974,733.24
5. Step 5: Solve for x
   x = 3,974,733.24/2,300.12
6. Step 6: Final answer
   x = 1,728.05