Finding the Fourth Proportional to 1,341.32, 1,850.54 and 843.78

Step by Step Solution

1. Step 1: Write the proportion equation
   1,341.32 : 1,850.54 = 843.78 : x
2. Step 2: Convert to fraction form
   1,341.32/1,850.54 = 843.78/x
3. Step 3: Cross multiply
   1,341.32x = 1,850.54 × 843.78
4. Step 4: Simplify right side
   1,341.32x = 1,561,448.64
5. Step 5: Solve for x
   x = 1,561,448.64/1,341.32
6. Step 6: Final answer
   x = 1,164.11