Finding the Fourth Proportional to 1,095.59, 1,642.17 and 517.25

Step by Step Solution

1. Step 1: Write the proportion equation
   1,095.59 : 1,642.17 = 517.25 : x
2. Step 2: Convert to fraction form
   1,095.59/1,642.17 = 517.25/x
3. Step 3: Cross multiply
   1,095.59x = 1,642.17 × 517.25
4. Step 4: Simplify right side
   1,095.59x = 849,412.43
5. Step 5: Solve for x
   x = 849,412.43/1,095.59
6. Step 6: Final answer
   x = 775.30