Finding the Fourth Proportional to 1,296.52, 1,789.22 and 707.06

Step by Step Solution

1. Step 1: Write the proportion equation
   1,296.52 : 1,789.22 = 707.06 : x
2. Step 2: Convert to fraction form
   1,296.52/1,789.22 = 707.06/x
3. Step 3: Cross multiply
   1,296.52x = 1,789.22 × 707.06
4. Step 4: Simplify right side
   1,296.52x = 1,265,085.89
5. Step 5: Solve for x
   x = 1,265,085.89/1,296.52
6. Step 6: Final answer
   x = 975.76