Finding the Fourth Proportional to 1,499.63, 2,069.31 and 836.38

Step by Step Solution

1. Step 1: Write the proportion equation
   1,499.63 : 2,069.31 = 836.38 : x
2. Step 2: Convert to fraction form
   1,499.63/2,069.31 = 836.38/x
3. Step 3: Cross multiply
   1,499.63x = 2,069.31 × 836.38
4. Step 4: Simplify right side
   1,499.63x = 1,730,729.50
5. Step 5: Solve for x
   x = 1,730,729.50/1,499.63
6. Step 6: Final answer
   x = 1,154.10