Finding the Fourth Proportional to 1,188.59, 1,782.83 and 704.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,188.59 : 1,782.83 = 704.72 : x
2. Step 2: Convert to fraction form
   1,188.59/1,782.83 = 704.72/x
3. Step 3: Cross multiply
   1,188.59x = 1,782.83 × 704.72
4. Step 4: Simplify right side
   1,188.59x = 1,256,392.43
5. Step 5: Solve for x
   x = 1,256,392.43/1,188.59
6. Step 6: Final answer
   x = 1,057.04