Finding the Fourth Proportional to 1,173.48, 1,756.71 and 709.86

Step by Step Solution

1. Step 1: Write the proportion equation
   1,173.48 : 1,756.71 = 709.86 : x
2. Step 2: Convert to fraction form
   1,173.48/1,756.71 = 709.86/x
3. Step 3: Cross multiply
   1,173.48x = 1,756.71 × 709.86
4. Step 4: Simplify right side
   1,173.48x = 1,247,005.83
5. Step 5: Solve for x
   x = 1,247,005.83/1,173.48
6. Step 6: Final answer
   x = 1,062.66