Finding the Fourth Proportional to 1,047.52, 1,571.82 and 499.42

Step by Step Solution

1. Step 1: Write the proportion equation
   1,047.52 : 1,571.82 = 499.42 : x
2. Step 2: Convert to fraction form
   1,047.52/1,571.82 = 499.42/x
3. Step 3: Cross multiply
   1,047.52x = 1,571.82 × 499.42
4. Step 4: Simplify right side
   1,047.52x = 784,998.34
5. Step 5: Solve for x
   x = 784,998.34/1,047.52
6. Step 6: Final answer
   x = 749.39