Finding the Fourth Proportional to 1,042.52, 1,561.71 and 694.82

Step by Step Solution

1. Step 1: Write the proportion equation
   1,042.52 : 1,561.71 = 694.82 : x
2. Step 2: Convert to fraction form
   1,042.52/1,561.71 = 694.82/x
3. Step 3: Cross multiply
   1,042.52x = 1,561.71 × 694.82
4. Step 4: Simplify right side
   1,042.52x = 1,085,107.34
5. Step 5: Solve for x
   x = 1,085,107.34/1,042.52
6. Step 6: Final answer
   x = 1,040.85