Finding the Fourth Proportional to 1,080.52, 1,613.33 and 926.20

Step by Step Solution

1. Step 1: Write the proportion equation
   1,080.52 : 1,613.33 = 926.20 : x
2. Step 2: Convert to fraction form
   1,080.52/1,613.33 = 926.20/x
3. Step 3: Cross multiply
   1,080.52x = 1,613.33 × 926.20
4. Step 4: Simplify right side
   1,080.52x = 1,494,266.25
5. Step 5: Solve for x
   x = 1,494,266.25/1,080.52
6. Step 6: Final answer
   x = 1,382.91