Finding the Fourth Proportional to 2,322.76, 3,206.91 and 1,439.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,322.76 : 3,206.91 = 1,439.50 : x
2. Step 2: Convert to fraction form
   2,322.76/3,206.91 = 1,439.50/x
3. Step 3: Cross multiply
   2,322.76x = 3,206.91 × 1,439.50
4. Step 4: Simplify right side
   2,322.76x = 4,616,346.95
5. Step 5: Solve for x
   x = 4,616,346.95/2,322.76
6. Step 6: Final answer
   x = 1,987.44