Finding the Fourth Proportional to 1,048.76, 1,571.98 and 500.12

Step by Step Solution

1. Step 1: Write the proportion equation
   1,048.76 : 1,571.98 = 500.12 : x
2. Step 2: Convert to fraction form
   1,048.76/1,571.98 = 500.12/x
3. Step 3: Cross multiply
   1,048.76x = 1,571.98 × 500.12
4. Step 4: Simplify right side
   1,048.76x = 786,178.64
5. Step 5: Solve for x
   x = 786,178.64/1,048.76
6. Step 6: Final answer
   x = 749.63