Finding the Fourth Proportional to 2,051.68, 2,830.49 and 1,167.31

Step by Step Solution

1. Step 1: Write the proportion equation
   2,051.68 : 2,830.49 = 1,167.31 : x
2. Step 2: Convert to fraction form
   2,051.68/2,830.49 = 1,167.31/x
3. Step 3: Cross multiply
   2,051.68x = 2,830.49 × 1,167.31
4. Step 4: Simplify right side
   2,051.68x = 3,304,067.93
5. Step 5: Solve for x
   x = 3,304,067.93/2,051.68
6. Step 6: Final answer
   x = 1,610.42