Finding the Fourth Proportional to 1,269.91, 1,752.42 and 710.38

Step by Step Solution

1. Step 1: Write the proportion equation
   1,269.91 : 1,752.42 = 710.38 : x
2. Step 2: Convert to fraction form
   1,269.91/1,752.42 = 710.38/x
3. Step 3: Cross multiply
   1,269.91x = 1,752.42 × 710.38
4. Step 4: Simplify right side
   1,269.91x = 1,244,884.12
5. Step 5: Solve for x
   x = 1,244,884.12/1,269.91
6. Step 6: Final answer
   x = 980.29