Finding the Fourth Proportional to 1,084.10, 1,494.88 and 690.62

Step by Step Solution

1. Step 1: Write the proportion equation
   1,084.10 : 1,494.88 = 690.62 : x
2. Step 2: Convert to fraction form
   1,084.10/1,494.88 = 690.62/x
3. Step 3: Cross multiply
   1,084.10x = 1,494.88 × 690.62
4. Step 4: Simplify right side
   1,084.10x = 1,032,383.10
5. Step 5: Solve for x
   x = 1,032,383.10/1,084.10
6. Step 6: Final answer
   x = 952.30