Finding the Fourth Proportional to 1,499.36, 2,068.96 and 836.16

Step by Step Solution

1. Step 1: Write the proportion equation
   1,499.36 : 2,068.96 = 836.16 : x
2. Step 2: Convert to fraction form
   1,499.36/2,068.96 = 836.16/x
3. Step 3: Cross multiply
   1,499.36x = 2,068.96 × 836.16
4. Step 4: Simplify right side
   1,499.36x = 1,729,981.59
5. Step 5: Solve for x
   x = 1,729,981.59/1,499.36
6. Step 6: Final answer
   x = 1,153.81