Finding the Fourth Proportional to 1,084.45, 1,496.54 and 587.10

Step by Step Solution

1. Step 1: Write the proportion equation
   1,084.45 : 1,496.54 = 587.10 : x
2. Step 2: Convert to fraction form
   1,084.45/1,496.54 = 587.10/x
3. Step 3: Cross multiply
   1,084.45x = 1,496.54 × 587.10
4. Step 4: Simplify right side
   1,084.45x = 878,613.42
5. Step 5: Solve for x
   x = 878,613.42/1,084.45
6. Step 6: Final answer
   x = 810.19