Finding the Fourth Proportional to 1,173.82, 1,761.15 and 712.54

Step by Step Solution

1. Step 1: Write the proportion equation
   1,173.82 : 1,761.15 = 712.54 : x
2. Step 2: Convert to fraction form
   1,173.82/1,761.15 = 712.54/x
3. Step 3: Cross multiply
   1,173.82x = 1,761.15 × 712.54
4. Step 4: Simplify right side
   1,173.82x = 1,254,889.82
5. Step 5: Solve for x
   x = 1,254,889.82/1,173.82
6. Step 6: Final answer
   x = 1,069.06