Finding the Fourth Proportional to 1,084.47, 1,613.70 and 1,080.83

Step by Step Solution

1. Step 1: Write the proportion equation
   1,084.47 : 1,613.70 = 1,080.83 : x
2. Step 2: Convert to fraction form
   1,084.47/1,613.70 = 1,080.83/x
3. Step 3: Cross multiply
   1,084.47x = 1,613.70 × 1,080.83
4. Step 4: Simplify right side
   1,084.47x = 1,744,127.30
5. Step 5: Solve for x
   x = 1,744,127.30/1,084.47
6. Step 6: Final answer
   x = 1,608.28