Finding the Fourth Proportional to 2,611.37, 3,603.69 and 1,432.45

Step by Step Solution

1. Step 1: Write the proportion equation
   2,611.37 : 3,603.69 = 1,432.45 : x
2. Step 2: Convert to fraction form
   2,611.37/3,603.69 = 1,432.45/x
3. Step 3: Cross multiply
   2,611.37x = 3,603.69 × 1,432.45
4. Step 4: Simplify right side
   2,611.37x = 5,162,110.25
5. Step 5: Solve for x
   x = 5,162,110.25/2,611.37
6. Step 6: Final answer
   x = 1,976.78