Finding the Fourth Proportional to 1,341.46, 1,850.91 and 810.43

Step by Step Solution

1. Step 1: Write the proportion equation
   1,341.46 : 1,850.91 = 810.43 : x
2. Step 2: Convert to fraction form
   1,341.46/1,850.91 = 810.43/x
3. Step 3: Cross multiply
   1,341.46x = 1,850.91 × 810.43
4. Step 4: Simplify right side
   1,341.46x = 1,500,023.74
5. Step 5: Solve for x
   x = 1,500,023.74/1,341.46
6. Step 6: Final answer
   x = 1,118.20