Finding the Fourth Proportional to 1,269.94, 1,752.54 and 710.39

Step by Step Solution

1. Step 1: Write the proportion equation
   1,269.94 : 1,752.54 = 710.39 : x
2. Step 2: Convert to fraction form
   1,269.94/1,752.54 = 710.39/x
3. Step 3: Cross multiply
   1,269.94x = 1,752.54 × 710.39
4. Step 4: Simplify right side
   1,269.94x = 1,244,986.89
5. Step 5: Solve for x
   x = 1,244,986.89/1,269.94
6. Step 6: Final answer
   x = 980.35