Finding the Fourth Proportional to 2,428.04, 3,350.72 and 1,379.92

Step by Step Solution

1. Step 1: Write the proportion equation
   2,428.04 : 3,350.72 = 1,379.92 : x
2. Step 2: Convert to fraction form
   2,428.04/3,350.72 = 1,379.92/x
3. Step 3: Cross multiply
   2,428.04x = 3,350.72 × 1,379.92
4. Step 4: Simplify right side
   2,428.04x = 4,623,725.54
5. Step 5: Solve for x
   x = 4,623,725.54/2,428.04
6. Step 6: Final answer
   x = 1,904.30