Finding the Fourth Proportional to 2,611.10, 3,603.30 and 1,432.16

Step by Step Solution

1. Step 1: Write the proportion equation
   2,611.10 : 3,603.30 = 1,432.16 : x
2. Step 2: Convert to fraction form
   2,611.10/3,603.30 = 1,432.16/x
3. Step 3: Cross multiply
   2,611.10x = 3,603.30 × 1,432.16
4. Step 4: Simplify right side
   2,611.10x = 5,160,520.58
5. Step 5: Solve for x
   x = 5,160,520.58/2,611.10
6. Step 6: Final answer
   x = 1,976.38