Finding the Fourth Proportional to 2,611.59, 3,603.97 and 1,416.60

Step by Step Solution

1. Step 1: Write the proportion equation
   2,611.59 : 3,603.97 = 1,416.60 : x
2. Step 2: Convert to fraction form
   2,611.59/3,603.97 = 1,416.60/x
3. Step 3: Cross multiply
   2,611.59x = 3,603.97 × 1,416.60
4. Step 4: Simplify right side
   2,611.59x = 5,105,385.67
5. Step 5: Solve for x
   x = 5,105,385.67/2,611.59
6. Step 6: Final answer
   x = 1,954.90