Finding the Fourth Proportional to 760.72, 1,047.72 and 706.96

Step by Step Solution

1. Step 1: Write the proportion equation
   760.72 : 1,047.72 = 706.96 : x
2. Step 2: Convert to fraction form
   760.72/1,047.72 = 706.96/x
3. Step 3: Cross multiply
   760.72x = 1,047.72 × 706.96
4. Step 4: Simplify right side
   760.72x = 740,696.13
5. Step 5: Solve for x
   x = 740,696.13/760.72
6. Step 6: Final answer
   x = 973.68