Finding the Fourth Proportional to 1,499.43, 2,069.31 and 836.28

Step by Step Solution

1. Step 1: Write the proportion equation
   1,499.43 : 2,069.31 = 836.28 : x
2. Step 2: Convert to fraction form
   1,499.43/2,069.31 = 836.28/x
3. Step 3: Cross multiply
   1,499.43x = 2,069.31 × 836.28
4. Step 4: Simplify right side
   1,499.43x = 1,730,522.57
5. Step 5: Solve for x
   x = 1,730,522.57/1,499.43
6. Step 6: Final answer
   x = 1,154.12