Finding the Fourth Proportional to 1,580.55, 2,181.69 and 1,084.62

Step by Step Solution

1. Step 1: Write the proportion equation
   1,580.55 : 2,181.69 = 1,084.62 : x
2. Step 2: Convert to fraction form
   1,580.55/2,181.69 = 1,084.62/x
3. Step 3: Cross multiply
   1,580.55x = 2,181.69 × 1,084.62
4. Step 4: Simplify right side
   1,580.55x = 2,366,304.61
5. Step 5: Solve for x
   x = 2,366,304.61/1,580.55
6. Step 6: Final answer
   x = 1,497.14