Finding the Fourth Proportional to 2,611.40, 3,910.82 and 1,512.43

Step by Step Solution

1. Step 1: Write the proportion equation
   2,611.40 : 3,910.82 = 1,512.43 : x
2. Step 2: Convert to fraction form
   2,611.40/3,910.82 = 1,512.43/x
3. Step 3: Cross multiply
   2,611.40x = 3,910.82 × 1,512.43
4. Step 4: Simplify right side
   2,611.40x = 5,914,824.15
5. Step 5: Solve for x
   x = 5,914,824.15/2,611.40
6. Step 6: Final answer
   x = 2,265.01