Finding the Fourth Proportional to 2,611.38, 3,603.68 and 1,432.42

Step by Step Solution

1. Step 1: Write the proportion equation
   2,611.38 : 3,603.68 = 1,432.42 : x
2. Step 2: Convert to fraction form
   2,611.38/3,603.68 = 1,432.42/x
3. Step 3: Cross multiply
   2,611.38x = 3,603.68 × 1,432.42
4. Step 4: Simplify right side
   2,611.38x = 5,161,983.31
5. Step 5: Solve for x
   x = 5,161,983.31/2,611.38
6. Step 6: Final answer
   x = 1,976.73