Finding the Fourth Proportional to 1,120.52, 1,682.00 and 849.57

Step by Step Solution

1. Step 1: Write the proportion equation
   1,120.52 : 1,682.00 = 849.57 : x
2. Step 2: Convert to fraction form
   1,120.52/1,682.00 = 849.57/x
3. Step 3: Cross multiply
   1,120.52x = 1,682.00 × 849.57
4. Step 4: Simplify right side
   1,120.52x = 1,428,972.49
5. Step 5: Solve for x
   x = 1,428,972.49/1,120.52
6. Step 6: Final answer
   x = 1,275.28