Finding the Fourth Proportional to 2,611.23, 3,603.31 and 1,432.27

Step by Step Solution

1. Step 1: Write the proportion equation
   2,611.23 : 3,603.31 = 1,432.27 : x
2. Step 2: Convert to fraction form
   2,611.23/3,603.31 = 1,432.27/x
3. Step 3: Cross multiply
   2,611.23x = 3,603.31 × 1,432.27
4. Step 4: Simplify right side
   2,611.23x = 5,160,912.81
5. Step 5: Solve for x
   x = 5,160,912.81/2,611.23
6. Step 6: Final answer
   x = 1,976.43