Finding the Fourth Proportional to 2,169.15, 2,994.57 and 1,670.69

Step by Step Solution

1. Step 1: Write the proportion equation
   2,169.15 : 2,994.57 = 1,670.69 : x
2. Step 2: Convert to fraction form
   2,169.15/2,994.57 = 1,670.69/x
3. Step 3: Cross multiply
   2,169.15x = 2,994.57 × 1,670.69
4. Step 4: Simplify right side
   2,169.15x = 5,003,005.64
5. Step 5: Solve for x
   x = 5,003,005.64/2,169.15
6. Step 6: Final answer
   x = 2,306.44