Finding the Fourth Proportional to 2,429.76, 3,353.22 and 1,382.16

Step by Step Solution

1. Step 1: Write the proportion equation
   2,429.76 : 3,353.22 = 1,382.16 : x
2. Step 2: Convert to fraction form
   2,429.76/3,353.22 = 1,382.16/x
3. Step 3: Cross multiply
   2,429.76x = 3,353.22 × 1,382.16
4. Step 4: Simplify right side
   2,429.76x = 4,634,686.56
5. Step 5: Solve for x
   x = 4,634,686.56/2,429.76
6. Step 6: Final answer
   x = 1,907.47