Finding the Fourth Proportional to 1,167.38, 1,751.71 and 518.10

Step by Step Solution

1. Step 1: Write the proportion equation
   1,167.38 : 1,751.71 = 518.10 : x
2. Step 2: Convert to fraction form
   1,167.38/1,751.71 = 518.10/x
3. Step 3: Cross multiply
   1,167.38x = 1,751.71 × 518.10
4. Step 4: Simplify right side
   1,167.38x = 907,554.06
5. Step 5: Solve for x
   x = 907,554.06/1,167.38
6. Step 6: Final answer
   x = 777.43