Finding the Fourth Proportional to 2,177.72, 3,265.18 and 1,436.47

Step by Step Solution

1. Step 1: Write the proportion equation
   2,177.72 : 3,265.18 = 1,436.47 : x
2. Step 2: Convert to fraction form
   2,177.72/3,265.18 = 1,436.47/x
3. Step 3: Cross multiply
   2,177.72x = 3,265.18 × 1,436.47
4. Step 4: Simplify right side
   2,177.72x = 4,690,333.11
5. Step 5: Solve for x
   x = 4,690,333.11/2,177.72
6. Step 6: Final answer
   x = 2,153.78