Finding the Fourth Proportional to 2,611.52, 3,603.89 and 1,432.65

Step by Step Solution

1. Step 1: Write the proportion equation
   2,611.52 : 3,603.89 = 1,432.65 : x
2. Step 2: Convert to fraction form
   2,611.52/3,603.89 = 1,432.65/x
3. Step 3: Cross multiply
   2,611.52x = 3,603.89 × 1,432.65
4. Step 4: Simplify right side
   2,611.52x = 5,163,116.59
5. Step 5: Solve for x
   x = 5,163,116.59/2,611.52
6. Step 6: Final answer
   x = 1,977.06