Finding the Fourth Proportional to 2,617.12, 3,926.04 and 1,384.30

Step by Step Solution

1. Step 1: Write the proportion equation
   2,617.12 : 3,926.04 = 1,384.30 : x
2. Step 2: Convert to fraction form
   2,617.12/3,926.04 = 1,384.30/x
3. Step 3: Cross multiply
   2,617.12x = 3,926.04 × 1,384.30
4. Step 4: Simplify right side
   2,617.12x = 5,434,817.17
5. Step 5: Solve for x
   x = 5,434,817.17/2,617.12
6. Step 6: Final answer
   x = 2,076.64