Finding the Fourth Proportional to 1,069.31, 1,474.03 and 836.03

Step by Step Solution

1. Step 1: Write the proportion equation
   1,069.31 : 1,474.03 = 836.03 : x
2. Step 2: Convert to fraction form
   1,069.31/1,474.03 = 836.03/x
3. Step 3: Cross multiply
   1,069.31x = 1,474.03 × 836.03
4. Step 4: Simplify right side
   1,069.31x = 1,232,333.30
5. Step 5: Solve for x
   x = 1,232,333.30/1,069.31
6. Step 6: Final answer
   x = 1,152.46