Finding the Fourth Proportional to 2,611.05, 3,603.15 and 1,491.96

Step by Step Solution

1. Step 1: Write the proportion equation
   2,611.05 : 3,603.15 = 1,491.96 : x
2. Step 2: Convert to fraction form
   2,611.05/3,603.15 = 1,491.96/x
3. Step 3: Cross multiply
   2,611.05x = 3,603.15 × 1,491.96
4. Step 4: Simplify right side
   2,611.05x = 5,375,755.67
5. Step 5: Solve for x
   x = 5,375,755.67/2,611.05
6. Step 6: Final answer
   x = 2,058.85