Finding the Fourth Proportional to 2,170.12, 2,994.06 and 1,384.42

Step by Step Solution

1. Step 1: Write the proportion equation
   2,170.12 : 2,994.06 = 1,384.42 : x
2. Step 2: Convert to fraction form
   2,170.12/2,994.06 = 1,384.42/x
3. Step 3: Cross multiply
   2,170.12x = 2,994.06 × 1,384.42
4. Step 4: Simplify right side
   2,170.12x = 4,145,036.55
5. Step 5: Solve for x
   x = 4,145,036.55/2,170.12
6. Step 6: Final answer
   x = 1,910.05