Finding the Fourth Proportional to 1,708.28, 2,357.61 and 1,045.58

Step by Step Solution

1. Step 1: Write the proportion equation
   1,708.28 : 2,357.61 = 1,045.58 : x
2. Step 2: Convert to fraction form
   1,708.28/2,357.61 = 1,045.58/x
3. Step 3: Cross multiply
   1,708.28x = 2,357.61 × 1,045.58
4. Step 4: Simplify right side
   1,708.28x = 2,465,054.15
5. Step 5: Solve for x
   x = 2,465,054.15/1,708.28
6. Step 6: Final answer
   x = 1,443.00