Finding the Fourth Proportional to 1,156.72, 1,736.02 and 609.42

Step by Step Solution

1. Step 1: Write the proportion equation
   1,156.72 : 1,736.02 = 609.42 : x
2. Step 2: Convert to fraction form
   1,156.72/1,736.02 = 609.42/x
3. Step 3: Cross multiply
   1,156.72x = 1,736.02 × 609.42
4. Step 4: Simplify right side
   1,156.72x = 1,057,965.31
5. Step 5: Solve for x
   x = 1,057,965.31/1,156.72
6. Step 6: Final answer
   x = 914.63