Finding the Fourth Proportional to 1,499.74, 2,069.72 and 836.66

Step by Step Solution

1. Step 1: Write the proportion equation
   1,499.74 : 2,069.72 = 836.66 : x
2. Step 2: Convert to fraction form
   1,499.74/2,069.72 = 836.66/x
3. Step 3: Cross multiply
   1,499.74x = 2,069.72 × 836.66
4. Step 4: Simplify right side
   1,499.74x = 1,731,651.94
5. Step 5: Solve for x
   x = 1,731,651.94/1,499.74
6. Step 6: Final answer
   x = 1,154.63