Finding the Fourth Proportional to 1,269.56, 1,752.03 and 709.99

Step by Step Solution

1. Step 1: Write the proportion equation
   1,269.56 : 1,752.03 = 709.99 : x
2. Step 2: Convert to fraction form
   1,269.56/1,752.03 = 709.99/x
3. Step 3: Cross multiply
   1,269.56x = 1,752.03 × 709.99
4. Step 4: Simplify right side
   1,269.56x = 1,243,924.33
5. Step 5: Solve for x
   x = 1,243,924.33/1,269.56
6. Step 6: Final answer
   x = 979.81