Finding the Fourth Proportional to 2,842.50, 4,263.72 and 1,680.60

Step by Step Solution

1. Step 1: Write the proportion equation
   2,842.50 : 4,263.72 = 1,680.60 : x
2. Step 2: Convert to fraction form
   2,842.50/4,263.72 = 1,680.60/x
3. Step 3: Cross multiply
   2,842.50x = 4,263.72 × 1,680.60
4. Step 4: Simplify right side
   2,842.50x = 7,165,607.83
5. Step 5: Solve for x
   x = 7,165,607.83/2,842.50
6. Step 6: Final answer
   x = 2,520.88