Finding the Fourth Proportional to 6,456.84, 8,910.08 and 3,585.40

Step by Step Solution

1. Step 1: Write the proportion equation
   6,456.84 : 8,910.08 = 3,585.40 : x
2. Step 2: Convert to fraction form
   6,456.84/8,910.08 = 3,585.40/x
3. Step 3: Cross multiply
   6,456.84x = 8,910.08 × 3,585.40
4. Step 4: Simplify right side
   6,456.84x = 31,946,200.83
5. Step 5: Solve for x
   x = 31,946,200.83/6,456.84
6. Step 6: Final answer
   x = 4,947.65