Finding the Fourth Proportional to 2,631.71, 3,631.77 and 1,436.78

Step by Step Solution

1. Step 1: Write the proportion equation
   2,631.71 : 3,631.77 = 1,436.78 : x
2. Step 2: Convert to fraction form
   2,631.71/3,631.77 = 1,436.78/x
3. Step 3: Cross multiply
   2,631.71x = 3,631.77 × 1,436.78
4. Step 4: Simplify right side
   2,631.71x = 5,218,036.34
5. Step 5: Solve for x
   x = 5,218,036.34/2,631.71
6. Step 6: Final answer
   x = 1,982.76