Finding the Fourth Proportional to 1,333.45, 1,839.67 and 836.11

Step by Step Solution

1. Step 1: Write the proportion equation
   1,333.45 : 1,839.67 = 836.11 : x
2. Step 2: Convert to fraction form
   1,333.45/1,839.67 = 836.11/x
3. Step 3: Cross multiply
   1,333.45x = 1,839.67 × 836.11
4. Step 4: Simplify right side
   1,333.45x = 1,538,166.48
5. Step 5: Solve for x
   x = 1,538,166.48/1,333.45
6. Step 6: Final answer
   x = 1,153.52