Finding the Fourth Proportional to 1,499.12, 2,068.76 and 836

Step by Step Solution

1. Step 1: Write the proportion equation
   1,499.12 : 2,068.76 = 836 : x
2. Step 2: Convert to fraction form
   1,499.12/2,068.76 = 836/x
3. Step 3: Cross multiply
   1,499.12x = 2,068.76 × 836
4. Step 4: Simplify right side
   1,499.12x = 1,729,483.36
5. Step 5: Solve for x
   x = 1,729,483.36/1,499.12
6. Step 6: Final answer
   x = 1,153.67