Finding the Fourth Proportional to 2,847.42, 3,929.31 and 1,669.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,847.42 : 3,929.31 = 1,669.50 : x
2. Step 2: Convert to fraction form
   2,847.42/3,929.31 = 1,669.50/x
3. Step 3: Cross multiply
   2,847.42x = 3,929.31 × 1,669.50
4. Step 4: Simplify right side
   2,847.42x = 6,559,983.05
5. Step 5: Solve for x
   x = 6,559,983.05/2,847.42
6. Step 6: Final answer
   x = 2,303.83