Finding the Fourth Proportional to 712.42, 1,061.77 and 711.34

Step by Step Solution

1. Step 1: Write the proportion equation
   712.42 : 1,061.77 = 711.34 : x
2. Step 2: Convert to fraction form
   712.42/1,061.77 = 711.34/x
3. Step 3: Cross multiply
   712.42x = 1,061.77 × 711.34
4. Step 4: Simplify right side
   712.42x = 755,279.47
5. Step 5: Solve for x
   x = 755,279.47/712.42
6. Step 6: Final answer
   x = 1,060.16