Finding the Fourth Proportional to 1,386.08, 2,080.52 and 996.54

Step by Step Solution

1. Step 1: Write the proportion equation
   1,386.08 : 2,080.52 = 996.54 : x
2. Step 2: Convert to fraction form
   1,386.08/2,080.52 = 996.54/x
3. Step 3: Cross multiply
   1,386.08x = 2,080.52 × 996.54
4. Step 4: Simplify right side
   1,386.08x = 2,073,321.40
5. Step 5: Solve for x
   x = 2,073,321.40/1,386.08
6. Step 6: Final answer
   x = 1,495.82