Finding the Fourth Proportional to 1,499.73, 2,069.55 and 836.57

Step by Step Solution

1. Step 1: Write the proportion equation
   1,499.73 : 2,069.55 = 836.57 : x
2. Step 2: Convert to fraction form
   1,499.73/2,069.55 = 836.57/x
3. Step 3: Cross multiply
   1,499.73x = 2,069.55 × 836.57
4. Step 4: Simplify right side
   1,499.73x = 1,731,323.44
5. Step 5: Solve for x
   x = 1,731,323.44/1,499.73
6. Step 6: Final answer
   x = 1,154.42