Finding the Fourth Proportional to 1,499.69, 2,069.50 and 836.61

Step by Step Solution

1. Step 1: Write the proportion equation
   1,499.69 : 2,069.50 = 836.61 : x
2. Step 2: Convert to fraction form
   1,499.69/2,069.50 = 836.61/x
3. Step 3: Cross multiply
   1,499.69x = 2,069.50 × 836.61
4. Step 4: Simplify right side
   1,499.69x = 1,731,364.40
5. Step 5: Solve for x
   x = 1,731,364.40/1,499.69
6. Step 6: Final answer
   x = 1,154.48