Finding the Fourth Proportional to 1,483.83, 2,047.65 and 811.62

Step by Step Solution

1. Step 1: Write the proportion equation
   1,483.83 : 2,047.65 = 811.62 : x
2. Step 2: Convert to fraction form
   1,483.83/2,047.65 = 811.62/x
3. Step 3: Cross multiply
   1,483.83x = 2,047.65 × 811.62
4. Step 4: Simplify right side
   1,483.83x = 1,661,913.69
5. Step 5: Solve for x
   x = 1,661,913.69/1,483.83
6. Step 6: Final answer
   x = 1,120.02