Finding the Fourth Proportional to 2,430.66, 3,644.31 and 1,131.42

Step by Step Solution

1. Step 1: Write the proportion equation
   2,430.66 : 3,644.31 = 1,131.42 : x
2. Step 2: Convert to fraction form
   2,430.66/3,644.31 = 1,131.42/x
3. Step 3: Cross multiply
   2,430.66x = 3,644.31 × 1,131.42
4. Step 4: Simplify right side
   2,430.66x = 4,123,245.22
5. Step 5: Solve for x
   x = 4,123,245.22/2,430.66
6. Step 6: Final answer
   x = 1,696.35