Finding the Fourth Proportional to 1,190.24, 1,794.40 and 1,106.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,190.24 : 1,794.40 = 1,106.72 : x
2. Step 2: Convert to fraction form
   1,190.24/1,794.40 = 1,106.72/x
3. Step 3: Cross multiply
   1,190.24x = 1,794.40 × 1,106.72
4. Step 4: Simplify right side
   1,190.24x = 1,985,898.37
5. Step 5: Solve for x
   x = 1,985,898.37/1,190.24
6. Step 6: Final answer
   x = 1,668.49