Finding the Fourth Proportional to 3,624.06, 5,433.91 and 1,978.32

Step by Step Solution

1. Step 1: Write the proportion equation
   3,624.06 : 5,433.91 = 1,978.32 : x
2. Step 2: Convert to fraction form
   3,624.06/5,433.91 = 1,978.32/x
3. Step 3: Cross multiply
   3,624.06x = 5,433.91 × 1,978.32
4. Step 4: Simplify right side
   3,624.06x = 10,750,007.89
5. Step 5: Solve for x
   x = 10,750,007.89/3,624.06
6. Step 6: Final answer
   x = 2,966.29