Finding the Fourth Proportional to 1,010.69, 1,393.04 and 771.34

Step by Step Solution

1. Step 1: Write the proportion equation
   1,010.69 : 1,393.04 = 771.34 : x
2. Step 2: Convert to fraction form
   1,010.69/1,393.04 = 771.34/x
3. Step 3: Cross multiply
   1,010.69x = 1,393.04 × 771.34
4. Step 4: Simplify right side
   1,010.69x = 1,074,505.92
5. Step 5: Solve for x
   x = 1,074,505.92/1,010.69
6. Step 6: Final answer
   x = 1,063.14