Finding the Fourth Proportional to 1,708.87, 2,357.61 and 1,079.47

Step by Step Solution

1. Step 1: Write the proportion equation
   1,708.87 : 2,357.61 = 1,079.47 : x
2. Step 2: Convert to fraction form
   1,708.87/2,357.61 = 1,079.47/x
3. Step 3: Cross multiply
   1,708.87x = 2,357.61 × 1,079.47
4. Step 4: Simplify right side
   1,708.87x = 2,544,969.27
5. Step 5: Solve for x
   x = 2,544,969.27/1,708.87
6. Step 6: Final answer
   x = 1,489.27