Finding the Fourth Proportional to 2,059.92, 3,090.72 and 964.32

Step by Step Solution

1. Step 1: Write the proportion equation
   2,059.92 : 3,090.72 = 964.32 : x
2. Step 2: Convert to fraction form
   2,059.92/3,090.72 = 964.32/x
3. Step 3: Cross multiply
   2,059.92x = 3,090.72 × 964.32
4. Step 4: Simplify right side
   2,059.92x = 2,980,443.11
5. Step 5: Solve for x
   x = 2,980,443.11/2,059.92
6. Step 6: Final answer
   x = 1,446.87