Finding the Fourth Proportional to 2,431.52, 3,355.38 and 1,436.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,431.52 : 3,355.38 = 1,436.72 : x
2. Step 2: Convert to fraction form
   2,431.52/3,355.38 = 1,436.72/x
3. Step 3: Cross multiply
   2,431.52x = 3,355.38 × 1,436.72
4. Step 4: Simplify right side
   2,431.52x = 4,820,741.55
5. Step 5: Solve for x
   x = 4,820,741.55/2,431.52
6. Step 6: Final answer
   x = 1,982.60