Finding the Fourth Proportional to 2,147.91, 3,223.68 and 1,174.69

Step by Step Solution

1. Step 1: Write the proportion equation
   2,147.91 : 3,223.68 = 1,174.69 : x
2. Step 2: Convert to fraction form
   2,147.91/3,223.68 = 1,174.69/x
3. Step 3: Cross multiply
   2,147.91x = 3,223.68 × 1,174.69
4. Step 4: Simplify right side
   2,147.91x = 3,786,824.66
5. Step 5: Solve for x
   x = 3,786,824.66/2,147.91
6. Step 6: Final answer
   x = 1,763.03