Finding the Fourth Proportional to 4,724.39, 7,087.36 and 1,436.72

Step by Step Solution

1. Step 1: Write the proportion equation
   4,724.39 : 7,087.36 = 1,436.72 : x
2. Step 2: Convert to fraction form
   4,724.39/7,087.36 = 1,436.72/x
3. Step 3: Cross multiply
   4,724.39x = 7,087.36 × 1,436.72
4. Step 4: Simplify right side
   4,724.39x = 10,182,551.86
5. Step 5: Solve for x
   x = 10,182,551.86/4,724.39
6. Step 6: Final answer
   x = 2,155.32