Finding the Fourth Proportional to 1,207.72, 1,801.72 and 1,174.24

Step by Step Solution

1. Step 1: Write the proportion equation
   1,207.72 : 1,801.72 = 1,174.24 : x
2. Step 2: Convert to fraction form
   1,207.72/1,801.72 = 1,174.24/x
3. Step 3: Cross multiply
   1,207.72x = 1,801.72 × 1,174.24
4. Step 4: Simplify right side
   1,207.72x = 2,115,651.69
5. Step 5: Solve for x
   x = 2,115,651.69/1,207.72
6. Step 6: Final answer
   x = 1,751.77