Finding the Fourth Proportional to 1,423.37, 2,134.72 and 729.69

Step by Step Solution

1. Step 1: Write the proportion equation
   1,423.37 : 2,134.72 = 729.69 : x
2. Step 2: Convert to fraction form
   1,423.37/2,134.72 = 729.69/x
3. Step 3: Cross multiply
   1,423.37x = 2,134.72 × 729.69
4. Step 4: Simplify right side
   1,423.37x = 1,557,676.74
5. Step 5: Solve for x
   x = 1,557,676.74/1,423.37
6. Step 6: Final answer
   x = 1,094.36