Finding the Fourth Proportional to 1,095.06, 1,641.13 and 516.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,095.06 : 1,641.13 = 516.72 : x
2. Step 2: Convert to fraction form
   1,095.06/1,641.13 = 516.72/x
3. Step 3: Cross multiply
   1,095.06x = 1,641.13 × 516.72
4. Step 4: Simplify right side
   1,095.06x = 848,004.69
5. Step 5: Solve for x
   x = 848,004.69/1,095.06
6. Step 6: Final answer
   x = 774.39