Finding the Fourth Proportional to 1,441.98, 2,160.12 and 709.34

Step by Step Solution

1. Step 1: Write the proportion equation
   1,441.98 : 2,160.12 = 709.34 : x
2. Step 2: Convert to fraction form
   1,441.98/2,160.12 = 709.34/x
3. Step 3: Cross multiply
   1,441.98x = 2,160.12 × 709.34
4. Step 4: Simplify right side
   1,441.98x = 1,532,259.52
5. Step 5: Solve for x
   x = 1,532,259.52/1,441.98
6. Step 6: Final answer
   x = 1,062.61