Finding the Fourth Proportional to 2,099.35, 3,150.09 and 929.61

Step by Step Solution

1. Step 1: Write the proportion equation
   2,099.35 : 3,150.09 = 929.61 : x
2. Step 2: Convert to fraction form
   2,099.35/3,150.09 = 929.61/x
3. Step 3: Cross multiply
   2,099.35x = 3,150.09 × 929.61
4. Step 4: Simplify right side
   2,099.35x = 2,928,355.16
5. Step 5: Solve for x
   x = 2,928,355.16/2,099.35
6. Step 6: Final answer
   x = 1,394.89