Finding the Fourth Proportional to 1,315.94, 1,816.01 and 756.42

Step by Step Solution

1. Step 1: Write the proportion equation
   1,315.94 : 1,816.01 = 756.42 : x
2. Step 2: Convert to fraction form
   1,315.94/1,816.01 = 756.42/x
3. Step 3: Cross multiply
   1,315.94x = 1,816.01 × 756.42
4. Step 4: Simplify right side
   1,315.94x = 1,373,666.28
5. Step 5: Solve for x
   x = 1,373,666.28/1,315.94
6. Step 6: Final answer
   x = 1,043.87