Finding the Fourth Proportional to 1,704.12, 2,554.05 and 729.09

Step by Step Solution

1. Step 1: Write the proportion equation
   1,704.12 : 2,554.05 = 729.09 : x
2. Step 2: Convert to fraction form
   1,704.12/2,554.05 = 729.09/x
3. Step 3: Cross multiply
   1,704.12x = 2,554.05 × 729.09
4. Step 4: Simplify right side
   1,704.12x = 1,862,132.31
5. Step 5: Solve for x
   x = 1,862,132.31/1,704.12
6. Step 6: Final answer
   x = 1,092.72