Finding the Fourth Proportional to 1,295.79, 1,788.17 and 706.31

Step by Step Solution

1. Step 1: Write the proportion equation
   1,295.79 : 1,788.17 = 706.31 : x
2. Step 2: Convert to fraction form
   1,295.79/1,788.17 = 706.31/x
3. Step 3: Cross multiply
   1,295.79x = 1,788.17 × 706.31
4. Step 4: Simplify right side
   1,295.79x = 1,263,002.35
5. Step 5: Solve for x
   x = 1,263,002.35/1,295.79
6. Step 6: Final answer
   x = 974.70