Finding the Fourth Proportional to 2,611.39, 3,603.81 and 1,432.47

Step by Step Solution

1. Step 1: Write the proportion equation
   2,611.39 : 3,603.81 = 1,432.47 : x
2. Step 2: Convert to fraction form
   2,611.39/3,603.81 = 1,432.47/x
3. Step 3: Cross multiply
   2,611.39x = 3,603.81 × 1,432.47
4. Step 4: Simplify right side
   2,611.39x = 5,162,331.69
5. Step 5: Solve for x
   x = 5,162,331.69/2,611.39
6. Step 6: Final answer
   x = 1,976.85