Finding the Fourth Proportional to 3,435.20, 5,150.88 and 1,382.72

Step by Step Solution

1. Step 1: Write the proportion equation
   3,435.20 : 5,150.88 = 1,382.72 : x
2. Step 2: Convert to fraction form
   3,435.20/5,150.88 = 1,382.72/x
3. Step 3: Cross multiply
   3,435.20x = 5,150.88 × 1,382.72
4. Step 4: Simplify right side
   3,435.20x = 7,122,224.79
5. Step 5: Solve for x
   x = 7,122,224.79/3,435.20
6. Step 6: Final answer
   x = 2,073.31