Finding the Fourth Proportional to 3,116.50, 4,300.77 and 1,874.50

Step by Step Solution

1. Step 1: Write the proportion equation
   3,116.50 : 4,300.77 = 1,874.50 : x
2. Step 2: Convert to fraction form
   3,116.50/4,300.77 = 1,874.50/x
3. Step 3: Cross multiply
   3,116.50x = 4,300.77 × 1,874.50
4. Step 4: Simplify right side
   3,116.50x = 8,061,793.37
5. Step 5: Solve for x
   x = 8,061,793.37/3,116.50
6. Step 6: Final answer
   x = 2,586.81