Finding the Fourth Proportional to 5,300.82, 7,951.68 and 1,405.18

Step by Step Solution

1. Step 1: Write the proportion equation
   5,300.82 : 7,951.68 = 1,405.18 : x
2. Step 2: Convert to fraction form
   5,300.82/7,951.68 = 1,405.18/x
3. Step 3: Cross multiply
   5,300.82x = 7,951.68 × 1,405.18
4. Step 4: Simplify right side
   5,300.82x = 11,173,541.70
5. Step 5: Solve for x
   x = 11,173,541.70/5,300.82
6. Step 6: Final answer
   x = 2,107.89