Finding the Fourth Proportional to 2,068.98, 3,104.46 and 836.40

Step by Step Solution

1. Step 1: Write the proportion equation
   2,068.98 : 3,104.46 = 836.40 : x
2. Step 2: Convert to fraction form
   2,068.98/3,104.46 = 836.40/x
3. Step 3: Cross multiply
   2,068.98x = 3,104.46 × 836.40
4. Step 4: Simplify right side
   2,068.98x = 2,596,570.34
5. Step 5: Solve for x
   x = 2,596,570.34/2,068.98
6. Step 6: Final answer
   x = 1,255.00