Finding the Fourth Proportional to 1,134.72, 1,699.68 and 518.94

Step by Step Solution

1. Step 1: Write the proportion equation
   1,134.72 : 1,699.68 = 518.94 : x
2. Step 2: Convert to fraction form
   1,134.72/1,699.68 = 518.94/x
3. Step 3: Cross multiply
   1,134.72x = 1,699.68 × 518.94
4. Step 4: Simplify right side
   1,134.72x = 882,033.89
5. Step 5: Solve for x
   x = 882,033.89/1,134.72
6. Step 6: Final answer
   x = 777.32