Finding the Fourth Proportional to 1,708.52, 2,357.78 and 1,009.89

Step by Step Solution

1. Step 1: Write the proportion equation
   1,708.52 : 2,357.78 = 1,009.89 : x
2. Step 2: Convert to fraction form
   1,708.52/2,357.78 = 1,009.89/x
3. Step 3: Cross multiply
   1,708.52x = 2,357.78 × 1,009.89
4. Step 4: Simplify right side
   1,708.52x = 2,381,093.39
5. Step 5: Solve for x
   x = 2,381,093.39/1,708.52
6. Step 6: Final answer
   x = 1,393.66