Finding the Fourth Proportional to 1,340.82, 1,851.05 and 836.83

Step by Step Solution

1. Step 1: Write the proportion equation
   1,340.82 : 1,851.05 = 836.83 : x
2. Step 2: Convert to fraction form
   1,340.82/1,851.05 = 836.83/x
3. Step 3: Cross multiply
   1,340.82x = 1,851.05 × 836.83
4. Step 4: Simplify right side
   1,340.82x = 1,549,018.58
5. Step 5: Solve for x
   x = 1,549,018.58/1,340.82
6. Step 6: Final answer
   x = 1,155.28