Finding the Fourth Proportional to 1,341.42, 1,850.67 and 810.42

Step by Step Solution

1. Step 1: Write the proportion equation
   1,341.42 : 1,850.67 = 810.42 : x
2. Step 2: Convert to fraction form
   1,341.42/1,850.67 = 810.42/x
3. Step 3: Cross multiply
   1,341.42x = 1,850.67 × 810.42
4. Step 4: Simplify right side
   1,341.42x = 1,499,819.98
5. Step 5: Solve for x
   x = 1,499,819.98/1,341.42
6. Step 6: Final answer
   x = 1,118.08