Finding the Fourth Proportional to 3,100.87, 4,277.50 and 1,964.46

Step by Step Solution

1. Step 1: Write the proportion equation
   3,100.87 : 4,277.50 = 1,964.46 : x
2. Step 2: Convert to fraction form
   3,100.87/4,277.50 = 1,964.46/x
3. Step 3: Cross multiply
   3,100.87x = 4,277.50 × 1,964.46
4. Step 4: Simplify right side
   3,100.87x = 8,402,967.83
5. Step 5: Solve for x
   x = 8,402,967.83/3,100.87
6. Step 6: Final answer
   x = 2,709.87