Finding the Fourth Proportional to 1,531.89, 2,294.79 and 709.05

Step by Step Solution

1. Step 1: Write the proportion equation
   1,531.89 : 2,294.79 = 709.05 : x
2. Step 2: Convert to fraction form
   1,531.89/2,294.79 = 709.05/x
3. Step 3: Cross multiply
   1,531.89x = 2,294.79 × 709.05
4. Step 4: Simplify right side
   1,531.89x = 1,627,120.85
5. Step 5: Solve for x
   x = 1,627,120.85/1,531.89
6. Step 6: Final answer
   x = 1,062.17