Finding the Fourth Proportional to 2,068.70, 3,100.35 and 835.10

Step by Step Solution

1. Step 1: Write the proportion equation
   2,068.70 : 3,100.35 = 835.10 : x
2. Step 2: Convert to fraction form
   2,068.70/3,100.35 = 835.10/x
3. Step 3: Cross multiply
   2,068.70x = 3,100.35 × 835.10
4. Step 4: Simplify right side
   2,068.70x = 2,589,102.29
5. Step 5: Solve for x
   x = 2,589,102.29/2,068.70
6. Step 6: Final answer
   x = 1,251.56