Finding the Fourth Proportional to 1,085.49, 1,497.42 and 692.10

Step by Step Solution

1. Step 1: Write the proportion equation
   1,085.49 : 1,497.42 = 692.10 : x
2. Step 2: Convert to fraction form
   1,085.49/1,497.42 = 692.10/x
3. Step 3: Cross multiply
   1,085.49x = 1,497.42 × 692.10
4. Step 4: Simplify right side
   1,085.49x = 1,036,364.38
5. Step 5: Solve for x
   x = 1,036,364.38/1,085.49
6. Step 6: Final answer
   x = 954.74