Finding the Fourth Proportional to 2,104.30, 3,153.48 and 1,131.22

Step by Step Solution

1. Step 1: Write the proportion equation
   2,104.30 : 3,153.48 = 1,131.22 : x
2. Step 2: Convert to fraction form
   2,104.30/3,153.48 = 1,131.22/x
3. Step 3: Cross multiply
   2,104.30x = 3,153.48 × 1,131.22
4. Step 4: Simplify right side
   2,104.30x = 3,567,279.65
5. Step 5: Solve for x
   x = 3,567,279.65/2,104.30
6. Step 6: Final answer
   x = 1,695.23