Finding the Fourth Proportional to 1,473.69, 2,033.72 and 810.55

Step by Step Solution

1. Step 1: Write the proportion equation
   1,473.69 : 2,033.72 = 810.55 : x
2. Step 2: Convert to fraction form
   1,473.69/2,033.72 = 810.55/x
3. Step 3: Cross multiply
   1,473.69x = 2,033.72 × 810.55
4. Step 4: Simplify right side
   1,473.69x = 1,648,441.27
5. Step 5: Solve for x
   x = 1,648,441.27/1,473.69
6. Step 6: Final answer
   x = 1,118.58